`.\r\n * @returns {Function} A `useDispatch` hook bound to the specified context.\r\n */\n\nexport function createDispatchHook(context) {\n if (context === void 0) {\n context = ReactReduxContext;\n }\n\n var useStore = context === ReactReduxContext ? useDefaultStore : createStoreHook(context);\n return function useDispatch() {\n var store = useStore();\n return store.dispatch;\n };\n}\n/**\r\n * A hook to access the redux `dispatch` function.\r\n *\r\n * @returns {any|function} redux store's `dispatch` function\r\n *\r\n * @example\r\n *\r\n * import React, { useCallback } from 'react'\r\n * import { useDispatch } from 'react-redux'\r\n *\r\n * export const CounterComponent = ({ value }) => {\r\n * const dispatch = useDispatch()\r\n * const increaseCounter = useCallback(() => dispatch({ type: 'increase-counter' }), [])\r\n * return (\r\n * \r\n * {value} \r\n * Increase counter \r\n *
\r\n * )\r\n * }\r\n */\n\nexport var useDispatch = /*#__PURE__*/createDispatchHook();","import { useReducer, useRef, useMemo, useContext, useDebugValue } from 'react';\nimport { useReduxContext as useDefaultReduxContext } from './useReduxContext';\nimport Subscription from '../utils/Subscription';\nimport { useIsomorphicLayoutEffect } from '../utils/useIsomorphicLayoutEffect';\nimport { ReactReduxContext } from '../components/Context';\n\nvar refEquality = function refEquality(a, b) {\n return a === b;\n};\n\nfunction useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub) {\n var _useReducer = useReducer(function (s) {\n return s + 1;\n }, 0),\n forceRender = _useReducer[1];\n\n var subscription = useMemo(function () {\n return new Subscription(store, contextSub);\n }, [store, contextSub]);\n var latestSubscriptionCallbackError = useRef();\n var latestSelector = useRef();\n var latestStoreState = useRef();\n var latestSelectedState = useRef();\n var storeState = store.getState();\n var selectedState;\n\n try {\n if (selector !== latestSelector.current || storeState !== latestStoreState.current || latestSubscriptionCallbackError.current) {\n var newSelectedState = selector(storeState); // ensure latest selected state is reused so that a custom equality function can result in identical references\n\n if (latestSelectedState.current === undefined || !equalityFn(newSelectedState, latestSelectedState.current)) {\n selectedState = newSelectedState;\n } else {\n selectedState = latestSelectedState.current;\n }\n } else {\n selectedState = latestSelectedState.current;\n }\n } catch (err) {\n if (latestSubscriptionCallbackError.current) {\n err.message += \"\\nThe error may be correlated with this previous error:\\n\" + latestSubscriptionCallbackError.current.stack + \"\\n\\n\";\n }\n\n throw err;\n }\n\n useIsomorphicLayoutEffect(function () {\n latestSelector.current = selector;\n latestStoreState.current = storeState;\n latestSelectedState.current = selectedState;\n latestSubscriptionCallbackError.current = undefined;\n });\n useIsomorphicLayoutEffect(function () {\n function checkForUpdates() {\n try {\n var newStoreState = store.getState();\n\n var _newSelectedState = latestSelector.current(newStoreState);\n\n if (equalityFn(_newSelectedState, latestSelectedState.current)) {\n return;\n }\n\n latestSelectedState.current = _newSelectedState;\n latestStoreState.current = newStoreState;\n } catch (err) {\n // we ignore all errors here, since when the component\n // is re-rendered, the selectors are called again, and\n // will throw again, if neither props nor store state\n // changed\n latestSubscriptionCallbackError.current = err;\n }\n\n forceRender();\n }\n\n subscription.onStateChange = checkForUpdates;\n subscription.trySubscribe();\n checkForUpdates();\n return function () {\n return subscription.tryUnsubscribe();\n };\n }, [store, subscription]);\n return selectedState;\n}\n/**\r\n * Hook factory, which creates a `useSelector` hook bound to a given context.\r\n *\r\n * @param {React.Context} [context=ReactReduxContext] Context passed to your ``.\r\n * @returns {Function} A `useSelector` hook bound to the specified context.\r\n */\n\n\nexport function createSelectorHook(context) {\n if (context === void 0) {\n context = ReactReduxContext;\n }\n\n var useReduxContext = context === ReactReduxContext ? useDefaultReduxContext : function () {\n return useContext(context);\n };\n return function useSelector(selector, equalityFn) {\n if (equalityFn === void 0) {\n equalityFn = refEquality;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (!selector) {\n throw new Error(\"You must pass a selector to useSelector\");\n }\n\n if (typeof selector !== 'function') {\n throw new Error(\"You must pass a function as a selector to useSelector\");\n }\n\n if (typeof equalityFn !== 'function') {\n throw new Error(\"You must pass a function as an equality function to useSelector\");\n }\n }\n\n var _useReduxContext = useReduxContext(),\n store = _useReduxContext.store,\n contextSub = _useReduxContext.subscription;\n\n var selectedState = useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub);\n useDebugValue(selectedState);\n return selectedState;\n };\n}\n/**\r\n * A hook to access the redux store's state. This hook takes a selector function\r\n * as an argument. The selector is called with the store state.\r\n *\r\n * This hook takes an optional equality comparison function as the second parameter\r\n * that allows you to customize the way the selected state is compared to determine\r\n * whether the component needs to be re-rendered.\r\n *\r\n * @param {Function} selector the selector function\r\n * @param {Function=} equalityFn the function that will be used to determine equality\r\n *\r\n * @returns {any} the selected state\r\n *\r\n * @example\r\n *\r\n * import React from 'react'\r\n * import { useSelector } from 'react-redux'\r\n *\r\n * export const CounterComponent = () => {\r\n * const counter = useSelector(state => state.counter)\r\n * return {counter}
\r\n * }\r\n */\n\nexport var useSelector = /*#__PURE__*/createSelectorHook();","import Provider from './components/Provider';\nimport connectAdvanced from './components/connectAdvanced';\nimport { ReactReduxContext } from './components/Context';\nimport connect from './connect/connect';\nimport { useDispatch, createDispatchHook } from './hooks/useDispatch';\nimport { useSelector, createSelectorHook } from './hooks/useSelector';\nimport { useStore, createStoreHook } from './hooks/useStore';\nimport { setBatch } from './utils/batch';\nimport { unstable_batchedUpdates as batch } from './utils/reactBatchedUpdates';\nimport shallowEqual from './utils/shallowEqual';\nsetBatch(batch);\nexport { Provider, connectAdvanced, ReactReduxContext, connect, batch, useDispatch, createDispatchHook, useSelector, createSelectorHook, useStore, createStoreHook, shallowEqual };","export default function _typeof(obj) {\n \"@babel/helpers - typeof\";\n\n if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") {\n _typeof = function _typeof(obj) {\n return typeof obj;\n };\n } else {\n _typeof = function _typeof(obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n };\n }\n\n return _typeof(obj);\n}","export default function _taggedTemplateLiteral(strings, raw) {\n if (!raw) {\n raw = strings.slice(0);\n }\n\n return Object.freeze(Object.defineProperties(strings, {\n raw: {\n value: Object.freeze(raw)\n }\n }));\n}","/*\n\nBased off glamor's StyleSheet, thanks Sunil ❤️\n\nhigh performance StyleSheet for css-in-js systems\n\n- uses multiple style tags behind the scenes for millions of rules\n- uses `insertRule` for appending in production for *much* faster performance\n\n// usage\n\nimport { StyleSheet } from '@emotion/sheet'\n\nlet styleSheet = new StyleSheet({ key: '', container: document.head })\n\nstyleSheet.insert('#box { border: 1px solid red; }')\n- appends a css rule into the stylesheet\n\nstyleSheet.flush()\n- empties the stylesheet of all its contents\n\n*/\n// $FlowFixMe\nfunction sheetForTag(tag) {\n if (tag.sheet) {\n // $FlowFixMe\n return tag.sheet;\n } // this weirdness brought to you by firefox\n\n /* istanbul ignore next */\n\n\n for (var i = 0; i < document.styleSheets.length; i++) {\n if (document.styleSheets[i].ownerNode === tag) {\n // $FlowFixMe\n return document.styleSheets[i];\n }\n }\n}\n\nfunction createStyleElement(options) {\n var tag = document.createElement('style');\n tag.setAttribute('data-emotion', options.key);\n\n if (options.nonce !== undefined) {\n tag.setAttribute('nonce', options.nonce);\n }\n\n tag.appendChild(document.createTextNode(''));\n return tag;\n}\n\nvar StyleSheet =\n/*#__PURE__*/\nfunction () {\n function StyleSheet(options) {\n this.isSpeedy = options.speedy === undefined ? process.env.NODE_ENV === 'production' : options.speedy;\n this.tags = [];\n this.ctr = 0;\n this.nonce = options.nonce; // key is the value of the data-emotion attribute, it's used to identify different sheets\n\n this.key = options.key;\n this.container = options.container;\n this.before = null;\n }\n\n var _proto = StyleSheet.prototype;\n\n _proto.insert = function insert(rule) {\n // the max length is how many rules we have per style tag, it's 65000 in speedy mode\n // it's 1 in dev because we insert source maps that map a single rule to a location\n // and you can only have one source map per style tag\n if (this.ctr % (this.isSpeedy ? 65000 : 1) === 0) {\n var _tag = createStyleElement(this);\n\n var before;\n\n if (this.tags.length === 0) {\n before = this.before;\n } else {\n before = this.tags[this.tags.length - 1].nextSibling;\n }\n\n this.container.insertBefore(_tag, before);\n this.tags.push(_tag);\n }\n\n var tag = this.tags[this.tags.length - 1];\n\n if (this.isSpeedy) {\n var sheet = sheetForTag(tag);\n\n try {\n // this is a really hot path\n // we check the second character first because having \"i\"\n // as the second character will happen less often than\n // having \"@\" as the first character\n var isImportRule = rule.charCodeAt(1) === 105 && rule.charCodeAt(0) === 64; // this is the ultrafast version, works across browsers\n // the big drawback is that the css won't be editable in devtools\n\n sheet.insertRule(rule, // we need to insert @import rules before anything else\n // otherwise there will be an error\n // technically this means that the @import rules will\n // _usually_(not always since there could be multiple style tags)\n // be the first ones in prod and generally later in dev\n // this shouldn't really matter in the real world though\n // @import is generally only used for font faces from google fonts and etc.\n // so while this could be technically correct then it would be slower and larger\n // for a tiny bit of correctness that won't matter in the real world\n isImportRule ? 0 : sheet.cssRules.length);\n } catch (e) {\n if (process.env.NODE_ENV !== 'production') {\n console.warn(\"There was a problem inserting the following rule: \\\"\" + rule + \"\\\"\", e);\n }\n }\n } else {\n tag.appendChild(document.createTextNode(rule));\n }\n\n this.ctr++;\n };\n\n _proto.flush = function flush() {\n // $FlowFixMe\n this.tags.forEach(function (tag) {\n return tag.parentNode.removeChild(tag);\n });\n this.tags = [];\n this.ctr = 0;\n };\n\n return StyleSheet;\n}();\n\nexport { StyleSheet };\n","function stylis_min (W) {\n function M(d, c, e, h, a) {\n for (var m = 0, b = 0, v = 0, n = 0, q, g, x = 0, K = 0, k, u = k = q = 0, l = 0, r = 0, I = 0, t = 0, B = e.length, J = B - 1, y, f = '', p = '', F = '', G = '', C; l < B;) {\n g = e.charCodeAt(l);\n l === J && 0 !== b + n + v + m && (0 !== b && (g = 47 === b ? 10 : 47), n = v = m = 0, B++, J++);\n\n if (0 === b + n + v + m) {\n if (l === J && (0 < r && (f = f.replace(N, '')), 0 < f.trim().length)) {\n switch (g) {\n case 32:\n case 9:\n case 59:\n case 13:\n case 10:\n break;\n\n default:\n f += e.charAt(l);\n }\n\n g = 59;\n }\n\n switch (g) {\n case 123:\n f = f.trim();\n q = f.charCodeAt(0);\n k = 1;\n\n for (t = ++l; l < B;) {\n switch (g = e.charCodeAt(l)) {\n case 123:\n k++;\n break;\n\n case 125:\n k--;\n break;\n\n case 47:\n switch (g = e.charCodeAt(l + 1)) {\n case 42:\n case 47:\n a: {\n for (u = l + 1; u < J; ++u) {\n switch (e.charCodeAt(u)) {\n case 47:\n if (42 === g && 42 === e.charCodeAt(u - 1) && l + 2 !== u) {\n l = u + 1;\n break a;\n }\n\n break;\n\n case 10:\n if (47 === g) {\n l = u + 1;\n break a;\n }\n\n }\n }\n\n l = u;\n }\n\n }\n\n break;\n\n case 91:\n g++;\n\n case 40:\n g++;\n\n case 34:\n case 39:\n for (; l++ < J && e.charCodeAt(l) !== g;) {\n }\n\n }\n\n if (0 === k) break;\n l++;\n }\n\n k = e.substring(t, l);\n 0 === q && (q = (f = f.replace(ca, '').trim()).charCodeAt(0));\n\n switch (q) {\n case 64:\n 0 < r && (f = f.replace(N, ''));\n g = f.charCodeAt(1);\n\n switch (g) {\n case 100:\n case 109:\n case 115:\n case 45:\n r = c;\n break;\n\n default:\n r = O;\n }\n\n k = M(c, r, k, g, a + 1);\n t = k.length;\n 0 < A && (r = X(O, f, I), C = H(3, k, r, c, D, z, t, g, a, h), f = r.join(''), void 0 !== C && 0 === (t = (k = C.trim()).length) && (g = 0, k = ''));\n if (0 < t) switch (g) {\n case 115:\n f = f.replace(da, ea);\n\n case 100:\n case 109:\n case 45:\n k = f + '{' + k + '}';\n break;\n\n case 107:\n f = f.replace(fa, '$1 $2');\n k = f + '{' + k + '}';\n k = 1 === w || 2 === w && L('@' + k, 3) ? '@-webkit-' + k + '@' + k : '@' + k;\n break;\n\n default:\n k = f + k, 112 === h && (k = (p += k, ''));\n } else k = '';\n break;\n\n default:\n k = M(c, X(c, f, I), k, h, a + 1);\n }\n\n F += k;\n k = I = r = u = q = 0;\n f = '';\n g = e.charCodeAt(++l);\n break;\n\n case 125:\n case 59:\n f = (0 < r ? f.replace(N, '') : f).trim();\n if (1 < (t = f.length)) switch (0 === u && (q = f.charCodeAt(0), 45 === q || 96 < q && 123 > q) && (t = (f = f.replace(' ', ':')).length), 0 < A && void 0 !== (C = H(1, f, c, d, D, z, p.length, h, a, h)) && 0 === (t = (f = C.trim()).length) && (f = '\\x00\\x00'), q = f.charCodeAt(0), g = f.charCodeAt(1), q) {\n case 0:\n break;\n\n case 64:\n if (105 === g || 99 === g) {\n G += f + e.charAt(l);\n break;\n }\n\n default:\n 58 !== f.charCodeAt(t - 1) && (p += P(f, q, g, f.charCodeAt(2)));\n }\n I = r = u = q = 0;\n f = '';\n g = e.charCodeAt(++l);\n }\n }\n\n switch (g) {\n case 13:\n case 10:\n 47 === b ? b = 0 : 0 === 1 + q && 107 !== h && 0 < f.length && (r = 1, f += '\\x00');\n 0 < A * Y && H(0, f, c, d, D, z, p.length, h, a, h);\n z = 1;\n D++;\n break;\n\n case 59:\n case 125:\n if (0 === b + n + v + m) {\n z++;\n break;\n }\n\n default:\n z++;\n y = e.charAt(l);\n\n switch (g) {\n case 9:\n case 32:\n if (0 === n + m + b) switch (x) {\n case 44:\n case 58:\n case 9:\n case 32:\n y = '';\n break;\n\n default:\n 32 !== g && (y = ' ');\n }\n break;\n\n case 0:\n y = '\\\\0';\n break;\n\n case 12:\n y = '\\\\f';\n break;\n\n case 11:\n y = '\\\\v';\n break;\n\n case 38:\n 0 === n + b + m && (r = I = 1, y = '\\f' + y);\n break;\n\n case 108:\n if (0 === n + b + m + E && 0 < u) switch (l - u) {\n case 2:\n 112 === x && 58 === e.charCodeAt(l - 3) && (E = x);\n\n case 8:\n 111 === K && (E = K);\n }\n break;\n\n case 58:\n 0 === n + b + m && (u = l);\n break;\n\n case 44:\n 0 === b + v + n + m && (r = 1, y += '\\r');\n break;\n\n case 34:\n case 39:\n 0 === b && (n = n === g ? 0 : 0 === n ? g : n);\n break;\n\n case 91:\n 0 === n + b + v && m++;\n break;\n\n case 93:\n 0 === n + b + v && m--;\n break;\n\n case 41:\n 0 === n + b + m && v--;\n break;\n\n case 40:\n if (0 === n + b + m) {\n if (0 === q) switch (2 * x + 3 * K) {\n case 533:\n break;\n\n default:\n q = 1;\n }\n v++;\n }\n\n break;\n\n case 64:\n 0 === b + v + n + m + u + k && (k = 1);\n break;\n\n case 42:\n case 47:\n if (!(0 < n + m + v)) switch (b) {\n case 0:\n switch (2 * g + 3 * e.charCodeAt(l + 1)) {\n case 235:\n b = 47;\n break;\n\n case 220:\n t = l, b = 42;\n }\n\n break;\n\n case 42:\n 47 === g && 42 === x && t + 2 !== l && (33 === e.charCodeAt(t + 2) && (p += e.substring(t, l + 1)), y = '', b = 0);\n }\n }\n\n 0 === b && (f += y);\n }\n\n K = x;\n x = g;\n l++;\n }\n\n t = p.length;\n\n if (0 < t) {\n r = c;\n if (0 < A && (C = H(2, p, r, d, D, z, t, h, a, h), void 0 !== C && 0 === (p = C).length)) return G + p + F;\n p = r.join(',') + '{' + p + '}';\n\n if (0 !== w * E) {\n 2 !== w || L(p, 2) || (E = 0);\n\n switch (E) {\n case 111:\n p = p.replace(ha, ':-moz-$1') + p;\n break;\n\n case 112:\n p = p.replace(Q, '::-webkit-input-$1') + p.replace(Q, '::-moz-$1') + p.replace(Q, ':-ms-input-$1') + p;\n }\n\n E = 0;\n }\n }\n\n return G + p + F;\n }\n\n function X(d, c, e) {\n var h = c.trim().split(ia);\n c = h;\n var a = h.length,\n m = d.length;\n\n switch (m) {\n case 0:\n case 1:\n var b = 0;\n\n for (d = 0 === m ? '' : d[0] + ' '; b < a; ++b) {\n c[b] = Z(d, c[b], e).trim();\n }\n\n break;\n\n default:\n var v = b = 0;\n\n for (c = []; b < a; ++b) {\n for (var n = 0; n < m; ++n) {\n c[v++] = Z(d[n] + ' ', h[b], e).trim();\n }\n }\n\n }\n\n return c;\n }\n\n function Z(d, c, e) {\n var h = c.charCodeAt(0);\n 33 > h && (h = (c = c.trim()).charCodeAt(0));\n\n switch (h) {\n case 38:\n return c.replace(F, '$1' + d.trim());\n\n case 58:\n return d.trim() + c.replace(F, '$1' + d.trim());\n\n default:\n if (0 < 1 * e && 0 < c.indexOf('\\f')) return c.replace(F, (58 === d.charCodeAt(0) ? '' : '$1') + d.trim());\n }\n\n return d + c;\n }\n\n function P(d, c, e, h) {\n var a = d + ';',\n m = 2 * c + 3 * e + 4 * h;\n\n if (944 === m) {\n d = a.indexOf(':', 9) + 1;\n var b = a.substring(d, a.length - 1).trim();\n b = a.substring(0, d).trim() + b + ';';\n return 1 === w || 2 === w && L(b, 1) ? '-webkit-' + b + b : b;\n }\n\n if (0 === w || 2 === w && !L(a, 1)) return a;\n\n switch (m) {\n case 1015:\n return 97 === a.charCodeAt(10) ? '-webkit-' + a + a : a;\n\n case 951:\n return 116 === a.charCodeAt(3) ? '-webkit-' + a + a : a;\n\n case 963:\n return 110 === a.charCodeAt(5) ? '-webkit-' + a + a : a;\n\n case 1009:\n if (100 !== a.charCodeAt(4)) break;\n\n case 969:\n case 942:\n return '-webkit-' + a + a;\n\n case 978:\n return '-webkit-' + a + '-moz-' + a + a;\n\n case 1019:\n case 983:\n return '-webkit-' + a + '-moz-' + a + '-ms-' + a + a;\n\n case 883:\n if (45 === a.charCodeAt(8)) return '-webkit-' + a + a;\n if (0 < a.indexOf('image-set(', 11)) return a.replace(ja, '$1-webkit-$2') + a;\n break;\n\n case 932:\n if (45 === a.charCodeAt(4)) switch (a.charCodeAt(5)) {\n case 103:\n return '-webkit-box-' + a.replace('-grow', '') + '-webkit-' + a + '-ms-' + a.replace('grow', 'positive') + a;\n\n case 115:\n return '-webkit-' + a + '-ms-' + a.replace('shrink', 'negative') + a;\n\n case 98:\n return '-webkit-' + a + '-ms-' + a.replace('basis', 'preferred-size') + a;\n }\n return '-webkit-' + a + '-ms-' + a + a;\n\n case 964:\n return '-webkit-' + a + '-ms-flex-' + a + a;\n\n case 1023:\n if (99 !== a.charCodeAt(8)) break;\n b = a.substring(a.indexOf(':', 15)).replace('flex-', '').replace('space-between', 'justify');\n return '-webkit-box-pack' + b + '-webkit-' + a + '-ms-flex-pack' + b + a;\n\n case 1005:\n return ka.test(a) ? a.replace(aa, ':-webkit-') + a.replace(aa, ':-moz-') + a : a;\n\n case 1e3:\n b = a.substring(13).trim();\n c = b.indexOf('-') + 1;\n\n switch (b.charCodeAt(0) + b.charCodeAt(c)) {\n case 226:\n b = a.replace(G, 'tb');\n break;\n\n case 232:\n b = a.replace(G, 'tb-rl');\n break;\n\n case 220:\n b = a.replace(G, 'lr');\n break;\n\n default:\n return a;\n }\n\n return '-webkit-' + a + '-ms-' + b + a;\n\n case 1017:\n if (-1 === a.indexOf('sticky', 9)) break;\n\n case 975:\n c = (a = d).length - 10;\n b = (33 === a.charCodeAt(c) ? a.substring(0, c) : a).substring(d.indexOf(':', 7) + 1).trim();\n\n switch (m = b.charCodeAt(0) + (b.charCodeAt(7) | 0)) {\n case 203:\n if (111 > b.charCodeAt(8)) break;\n\n case 115:\n a = a.replace(b, '-webkit-' + b) + ';' + a;\n break;\n\n case 207:\n case 102:\n a = a.replace(b, '-webkit-' + (102 < m ? 'inline-' : '') + 'box') + ';' + a.replace(b, '-webkit-' + b) + ';' + a.replace(b, '-ms-' + b + 'box') + ';' + a;\n }\n\n return a + ';';\n\n case 938:\n if (45 === a.charCodeAt(5)) switch (a.charCodeAt(6)) {\n case 105:\n return b = a.replace('-items', ''), '-webkit-' + a + '-webkit-box-' + b + '-ms-flex-' + b + a;\n\n case 115:\n return '-webkit-' + a + '-ms-flex-item-' + a.replace(ba, '') + a;\n\n default:\n return '-webkit-' + a + '-ms-flex-line-pack' + a.replace('align-content', '').replace(ba, '') + a;\n }\n break;\n\n case 973:\n case 989:\n if (45 !== a.charCodeAt(3) || 122 === a.charCodeAt(4)) break;\n\n case 931:\n case 953:\n if (!0 === la.test(d)) return 115 === (b = d.substring(d.indexOf(':') + 1)).charCodeAt(0) ? P(d.replace('stretch', 'fill-available'), c, e, h).replace(':fill-available', ':stretch') : a.replace(b, '-webkit-' + b) + a.replace(b, '-moz-' + b.replace('fill-', '')) + a;\n break;\n\n case 962:\n if (a = '-webkit-' + a + (102 === a.charCodeAt(5) ? '-ms-' + a : '') + a, 211 === e + h && 105 === a.charCodeAt(13) && 0 < a.indexOf('transform', 10)) return a.substring(0, a.indexOf(';', 27) + 1).replace(ma, '$1-webkit-$2') + a;\n }\n\n return a;\n }\n\n function L(d, c) {\n var e = d.indexOf(1 === c ? ':' : '{'),\n h = d.substring(0, 3 !== c ? e : 10);\n e = d.substring(e + 1, d.length - 1);\n return R(2 !== c ? h : h.replace(na, '$1'), e, c);\n }\n\n function ea(d, c) {\n var e = P(c, c.charCodeAt(0), c.charCodeAt(1), c.charCodeAt(2));\n return e !== c + ';' ? e.replace(oa, ' or ($1)').substring(4) : '(' + c + ')';\n }\n\n function H(d, c, e, h, a, m, b, v, n, q) {\n for (var g = 0, x = c, w; g < A; ++g) {\n switch (w = S[g].call(B, d, x, e, h, a, m, b, v, n, q)) {\n case void 0:\n case !1:\n case !0:\n case null:\n break;\n\n default:\n x = w;\n }\n }\n\n if (x !== c) return x;\n }\n\n function T(d) {\n switch (d) {\n case void 0:\n case null:\n A = S.length = 0;\n break;\n\n default:\n if ('function' === typeof d) S[A++] = d;else if ('object' === typeof d) for (var c = 0, e = d.length; c < e; ++c) {\n T(d[c]);\n } else Y = !!d | 0;\n }\n\n return T;\n }\n\n function U(d) {\n d = d.prefix;\n void 0 !== d && (R = null, d ? 'function' !== typeof d ? w = 1 : (w = 2, R = d) : w = 0);\n return U;\n }\n\n function B(d, c) {\n var e = d;\n 33 > e.charCodeAt(0) && (e = e.trim());\n V = e;\n e = [V];\n\n if (0 < A) {\n var h = H(-1, c, e, e, D, z, 0, 0, 0, 0);\n void 0 !== h && 'string' === typeof h && (c = h);\n }\n\n var a = M(O, e, c, 0, 0);\n 0 < A && (h = H(-2, a, e, e, D, z, a.length, 0, 0, 0), void 0 !== h && (a = h));\n V = '';\n E = 0;\n z = D = 1;\n return a;\n }\n\n var ca = /^\\0+/g,\n N = /[\\0\\r\\f]/g,\n aa = /: */g,\n ka = /zoo|gra/,\n ma = /([,: ])(transform)/g,\n ia = /,\\r+?/g,\n F = /([\\t\\r\\n ])*\\f?&/g,\n fa = /@(k\\w+)\\s*(\\S*)\\s*/,\n Q = /::(place)/g,\n ha = /:(read-only)/g,\n G = /[svh]\\w+-[tblr]{2}/,\n da = /\\(\\s*(.*)\\s*\\)/g,\n oa = /([\\s\\S]*?);/g,\n ba = /-self|flex-/g,\n na = /[^]*?(:[rp][el]a[\\w-]+)[^]*/,\n la = /stretch|:\\s*\\w+\\-(?:conte|avail)/,\n ja = /([^-])(image-set\\()/,\n z = 1,\n D = 1,\n E = 0,\n w = 1,\n O = [],\n S = [],\n A = 0,\n R = null,\n Y = 0,\n V = '';\n B.use = T;\n B.set = U;\n void 0 !== W && U(W);\n return B;\n}\n\nexport default stylis_min;\n","import { StyleSheet } from '@emotion/sheet';\nimport Stylis from '@emotion/stylis';\nimport '@emotion/weak-memoize';\n\n// https://github.com/thysultan/stylis.js/tree/master/plugins/rule-sheet\n// inlined to avoid umd wrapper and peerDep warnings/installing stylis\n// since we use stylis after closure compiler\nvar delimiter = '/*|*/';\nvar needle = delimiter + '}';\n\nfunction toSheet(block) {\n if (block) {\n Sheet.current.insert(block + '}');\n }\n}\n\nvar Sheet = {\n current: null\n};\nvar ruleSheet = function ruleSheet(context, content, selectors, parents, line, column, length, ns, depth, at) {\n switch (context) {\n // property\n case 1:\n {\n switch (content.charCodeAt(0)) {\n case 64:\n {\n // @import\n Sheet.current.insert(content + ';');\n return '';\n }\n // charcode for l\n\n case 108:\n {\n // charcode for b\n // this ignores label\n if (content.charCodeAt(2) === 98) {\n return '';\n }\n }\n }\n\n break;\n }\n // selector\n\n case 2:\n {\n if (ns === 0) return content + delimiter;\n break;\n }\n // at-rule\n\n case 3:\n {\n switch (ns) {\n // @font-face, @page\n case 102:\n case 112:\n {\n Sheet.current.insert(selectors[0] + content);\n return '';\n }\n\n default:\n {\n return content + (at === 0 ? delimiter : '');\n }\n }\n }\n\n case -2:\n {\n content.split(needle).forEach(toSheet);\n }\n }\n};\n\nvar createCache = function createCache(options) {\n if (options === undefined) options = {};\n var key = options.key || 'css';\n var stylisOptions;\n\n if (options.prefix !== undefined) {\n stylisOptions = {\n prefix: options.prefix\n };\n }\n\n var stylis = new Stylis(stylisOptions);\n\n if (process.env.NODE_ENV !== 'production') {\n // $FlowFixMe\n if (/[^a-z-]/.test(key)) {\n throw new Error(\"Emotion key must only contain lower case alphabetical characters and - but \\\"\" + key + \"\\\" was passed\");\n }\n }\n\n var inserted = {}; // $FlowFixMe\n\n var container;\n\n {\n container = options.container || document.head;\n var nodes = document.querySelectorAll(\"style[data-emotion-\" + key + \"]\");\n Array.prototype.forEach.call(nodes, function (node) {\n var attrib = node.getAttribute(\"data-emotion-\" + key); // $FlowFixMe\n\n attrib.split(' ').forEach(function (id) {\n inserted[id] = true;\n });\n\n if (node.parentNode !== container) {\n container.appendChild(node);\n }\n });\n }\n\n var _insert;\n\n {\n stylis.use(options.stylisPlugins)(ruleSheet);\n\n _insert = function insert(selector, serialized, sheet, shouldCache) {\n var name = serialized.name;\n Sheet.current = sheet;\n\n if (process.env.NODE_ENV !== 'production' && serialized.map !== undefined) {\n var map = serialized.map;\n Sheet.current = {\n insert: function insert(rule) {\n sheet.insert(rule + map);\n }\n };\n }\n\n stylis(selector, serialized.styles);\n\n if (shouldCache) {\n cache.inserted[name] = true;\n }\n };\n }\n\n if (process.env.NODE_ENV !== 'production') {\n // https://esbench.com/bench/5bf7371a4cd7e6009ef61d0a\n var commentStart = /\\/\\*/g;\n var commentEnd = /\\*\\//g;\n stylis.use(function (context, content) {\n switch (context) {\n case -1:\n {\n while (commentStart.test(content)) {\n commentEnd.lastIndex = commentStart.lastIndex;\n\n if (commentEnd.test(content)) {\n commentStart.lastIndex = commentEnd.lastIndex;\n continue;\n }\n\n throw new Error('Your styles have an unterminated comment (\"/*\" without corresponding \"*/\").');\n }\n\n commentStart.lastIndex = 0;\n break;\n }\n }\n });\n stylis.use(function (context, content, selectors) {\n switch (context) {\n case -1:\n {\n var flag = 'emotion-disable-server-rendering-unsafe-selector-warning-please-do-not-use-this-the-warning-exists-for-a-reason';\n var unsafePseudoClasses = content.match(/(:first|:nth|:nth-last)-child/g);\n\n if (unsafePseudoClasses && cache.compat !== true) {\n unsafePseudoClasses.forEach(function (unsafePseudoClass) {\n var ignoreRegExp = new RegExp(unsafePseudoClass + \".*\\\\/\\\\* \" + flag + \" \\\\*\\\\/\");\n var ignore = ignoreRegExp.test(content);\n\n if (unsafePseudoClass && !ignore) {\n console.error(\"The pseudo class \\\"\" + unsafePseudoClass + \"\\\" is potentially unsafe when doing server-side rendering. Try changing it to \\\"\" + unsafePseudoClass.split('-child')[0] + \"-of-type\\\".\");\n }\n });\n }\n\n break;\n }\n }\n });\n }\n\n var cache = {\n key: key,\n sheet: new StyleSheet({\n key: key,\n container: container,\n nonce: options.nonce,\n speedy: options.speedy\n }),\n nonce: options.nonce,\n inserted: inserted,\n registered: {},\n insert: _insert\n };\n return cache;\n};\n\nexport default createCache;\n","function memoize(fn) {\n var cache = {};\n return function (arg) {\n if (cache[arg] === undefined) cache[arg] = fn(arg);\n return cache[arg];\n };\n}\n\nexport default memoize;\n","import hashString from '@emotion/hash';\nimport unitless from '@emotion/unitless';\nimport memoize from '@emotion/memoize';\n\nvar ILLEGAL_ESCAPE_SEQUENCE_ERROR = \"You have illegal escape sequence in your template literal, most likely inside content's property value.\\nBecause you write your CSS inside a JavaScript string you actually have to do double escaping, so for example \\\"content: '\\\\00d7';\\\" should become \\\"content: '\\\\\\\\00d7';\\\".\\nYou can read more about this here:\\nhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#ES2018_revision_of_illegal_escape_sequences\";\nvar UNDEFINED_AS_OBJECT_KEY_ERROR = \"You have passed in falsy value as style object's key (can happen when in example you pass unexported component as computed key).\";\nvar hyphenateRegex = /[A-Z]|^ms/g;\nvar animationRegex = /_EMO_([^_]+?)_([^]*?)_EMO_/g;\n\nvar isCustomProperty = function isCustomProperty(property) {\n return property.charCodeAt(1) === 45;\n};\n\nvar isProcessableValue = function isProcessableValue(value) {\n return value != null && typeof value !== 'boolean';\n};\n\nvar processStyleName = memoize(function (styleName) {\n return isCustomProperty(styleName) ? styleName : styleName.replace(hyphenateRegex, '-$&').toLowerCase();\n});\n\nvar processStyleValue = function processStyleValue(key, value) {\n switch (key) {\n case 'animation':\n case 'animationName':\n {\n if (typeof value === 'string') {\n return value.replace(animationRegex, function (match, p1, p2) {\n cursor = {\n name: p1,\n styles: p2,\n next: cursor\n };\n return p1;\n });\n }\n }\n }\n\n if (unitless[key] !== 1 && !isCustomProperty(key) && typeof value === 'number' && value !== 0) {\n return value + 'px';\n }\n\n return value;\n};\n\nif (process.env.NODE_ENV !== 'production') {\n var contentValuePattern = /(attr|calc|counters?|url)\\(/;\n var contentValues = ['normal', 'none', 'counter', 'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote', 'initial', 'inherit', 'unset'];\n var oldProcessStyleValue = processStyleValue;\n var msPattern = /^-ms-/;\n var hyphenPattern = /-(.)/g;\n var hyphenatedCache = {};\n\n processStyleValue = function processStyleValue(key, value) {\n if (key === 'content') {\n if (typeof value !== 'string' || contentValues.indexOf(value) === -1 && !contentValuePattern.test(value) && (value.charAt(0) !== value.charAt(value.length - 1) || value.charAt(0) !== '\"' && value.charAt(0) !== \"'\")) {\n console.error(\"You seem to be using a value for 'content' without quotes, try replacing it with `content: '\\\"\" + value + \"\\\"'`\");\n }\n }\n\n var processed = oldProcessStyleValue(key, value);\n\n if (processed !== '' && !isCustomProperty(key) && key.indexOf('-') !== -1 && hyphenatedCache[key] === undefined) {\n hyphenatedCache[key] = true;\n console.error(\"Using kebab-case for css properties in objects is not supported. Did you mean \" + key.replace(msPattern, 'ms-').replace(hyphenPattern, function (str, _char) {\n return _char.toUpperCase();\n }) + \"?\");\n }\n\n return processed;\n };\n}\n\nvar shouldWarnAboutInterpolatingClassNameFromCss = true;\n\nfunction handleInterpolation(mergedProps, registered, interpolation, couldBeSelectorInterpolation) {\n if (interpolation == null) {\n return '';\n }\n\n if (interpolation.__emotion_styles !== undefined) {\n if (process.env.NODE_ENV !== 'production' && interpolation.toString() === 'NO_COMPONENT_SELECTOR') {\n throw new Error('Component selectors can only be used in conjunction with babel-plugin-emotion.');\n }\n\n return interpolation;\n }\n\n switch (typeof interpolation) {\n case 'boolean':\n {\n return '';\n }\n\n case 'object':\n {\n if (interpolation.anim === 1) {\n cursor = {\n name: interpolation.name,\n styles: interpolation.styles,\n next: cursor\n };\n return interpolation.name;\n }\n\n if (interpolation.styles !== undefined) {\n var next = interpolation.next;\n\n if (next !== undefined) {\n // not the most efficient thing ever but this is a pretty rare case\n // and there will be very few iterations of this generally\n while (next !== undefined) {\n cursor = {\n name: next.name,\n styles: next.styles,\n next: cursor\n };\n next = next.next;\n }\n }\n\n var styles = interpolation.styles + \";\";\n\n if (process.env.NODE_ENV !== 'production' && interpolation.map !== undefined) {\n styles += interpolation.map;\n }\n\n return styles;\n }\n\n return createStringFromObject(mergedProps, registered, interpolation);\n }\n\n case 'function':\n {\n if (mergedProps !== undefined) {\n var previousCursor = cursor;\n var result = interpolation(mergedProps);\n cursor = previousCursor;\n return handleInterpolation(mergedProps, registered, result, couldBeSelectorInterpolation);\n } else if (process.env.NODE_ENV !== 'production') {\n console.error('Functions that are interpolated in css calls will be stringified.\\n' + 'If you want to have a css call based on props, create a function that returns a css call like this\\n' + 'let dynamicStyle = (props) => css`color: ${props.color}`\\n' + 'It can be called directly with props or interpolated in a styled call like this\\n' + \"let SomeComponent = styled('div')`${dynamicStyle}`\");\n }\n\n break;\n }\n\n case 'string':\n if (process.env.NODE_ENV !== 'production') {\n var matched = [];\n var replaced = interpolation.replace(animationRegex, function (match, p1, p2) {\n var fakeVarName = \"animation\" + matched.length;\n matched.push(\"const \" + fakeVarName + \" = keyframes`\" + p2.replace(/^@keyframes animation-\\w+/, '') + \"`\");\n return \"${\" + fakeVarName + \"}\";\n });\n\n if (matched.length) {\n console.error('`keyframes` output got interpolated into plain string, please wrap it with `css`.\\n\\n' + 'Instead of doing this:\\n\\n' + [].concat(matched, [\"`\" + replaced + \"`\"]).join('\\n') + '\\n\\nYou should wrap it with `css` like this:\\n\\n' + (\"css`\" + replaced + \"`\"));\n }\n }\n\n break;\n } // finalize string values (regular strings and functions interpolated into css calls)\n\n\n if (registered == null) {\n return interpolation;\n }\n\n var cached = registered[interpolation];\n\n if (process.env.NODE_ENV !== 'production' && couldBeSelectorInterpolation && shouldWarnAboutInterpolatingClassNameFromCss && cached !== undefined) {\n console.error('Interpolating a className from css`` is not recommended and will cause problems with composition.\\n' + 'Interpolating a className from css`` will be completely unsupported in a future major version of Emotion');\n shouldWarnAboutInterpolatingClassNameFromCss = false;\n }\n\n return cached !== undefined && !couldBeSelectorInterpolation ? cached : interpolation;\n}\n\nfunction createStringFromObject(mergedProps, registered, obj) {\n var string = '';\n\n if (Array.isArray(obj)) {\n for (var i = 0; i < obj.length; i++) {\n string += handleInterpolation(mergedProps, registered, obj[i], false);\n }\n } else {\n for (var _key in obj) {\n var value = obj[_key];\n\n if (typeof value !== 'object') {\n if (registered != null && registered[value] !== undefined) {\n string += _key + \"{\" + registered[value] + \"}\";\n } else if (isProcessableValue(value)) {\n string += processStyleName(_key) + \":\" + processStyleValue(_key, value) + \";\";\n }\n } else {\n if (_key === 'NO_COMPONENT_SELECTOR' && process.env.NODE_ENV !== 'production') {\n throw new Error('Component selectors can only be used in conjunction with babel-plugin-emotion.');\n }\n\n if (Array.isArray(value) && typeof value[0] === 'string' && (registered == null || registered[value[0]] === undefined)) {\n for (var _i = 0; _i < value.length; _i++) {\n if (isProcessableValue(value[_i])) {\n string += processStyleName(_key) + \":\" + processStyleValue(_key, value[_i]) + \";\";\n }\n }\n } else {\n var interpolated = handleInterpolation(mergedProps, registered, value, false);\n\n switch (_key) {\n case 'animation':\n case 'animationName':\n {\n string += processStyleName(_key) + \":\" + interpolated + \";\";\n break;\n }\n\n default:\n {\n if (process.env.NODE_ENV !== 'production' && _key === 'undefined') {\n console.error(UNDEFINED_AS_OBJECT_KEY_ERROR);\n }\n\n string += _key + \"{\" + interpolated + \"}\";\n }\n }\n }\n }\n }\n }\n\n return string;\n}\n\nvar labelPattern = /label:\\s*([^\\s;\\n{]+)\\s*;/g;\nvar sourceMapPattern;\n\nif (process.env.NODE_ENV !== 'production') {\n sourceMapPattern = /\\/\\*#\\ssourceMappingURL=data:application\\/json;\\S+\\s+\\*\\//;\n} // this is the cursor for keyframes\n// keyframes are stored on the SerializedStyles object as a linked list\n\n\nvar cursor;\nvar serializeStyles = function serializeStyles(args, registered, mergedProps) {\n if (args.length === 1 && typeof args[0] === 'object' && args[0] !== null && args[0].styles !== undefined) {\n return args[0];\n }\n\n var stringMode = true;\n var styles = '';\n cursor = undefined;\n var strings = args[0];\n\n if (strings == null || strings.raw === undefined) {\n stringMode = false;\n styles += handleInterpolation(mergedProps, registered, strings, false);\n } else {\n if (process.env.NODE_ENV !== 'production' && strings[0] === undefined) {\n console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);\n }\n\n styles += strings[0];\n } // we start at 1 since we've already handled the first arg\n\n\n for (var i = 1; i < args.length; i++) {\n styles += handleInterpolation(mergedProps, registered, args[i], styles.charCodeAt(styles.length - 1) === 46);\n\n if (stringMode) {\n if (process.env.NODE_ENV !== 'production' && strings[i] === undefined) {\n console.error(ILLEGAL_ESCAPE_SEQUENCE_ERROR);\n }\n\n styles += strings[i];\n }\n }\n\n var sourceMap;\n\n if (process.env.NODE_ENV !== 'production') {\n styles = styles.replace(sourceMapPattern, function (match) {\n sourceMap = match;\n return '';\n });\n } // using a global regex with .exec is stateful so lastIndex has to be reset each time\n\n\n labelPattern.lastIndex = 0;\n var identifierName = '';\n var match; // https://esbench.com/bench/5b809c2cf2949800a0f61fb5\n\n while ((match = labelPattern.exec(styles)) !== null) {\n identifierName += '-' + // $FlowFixMe we know it's not null\n match[1];\n }\n\n var name = hashString(styles) + identifierName;\n\n if (process.env.NODE_ENV !== 'production') {\n // $FlowFixMe SerializedStyles type doesn't have toString property (and we don't want to add it)\n return {\n name: name,\n styles: styles,\n map: sourceMap,\n next: cursor,\n toString: function toString() {\n return \"You have tried to stringify object returned from `css` function. It isn't supposed to be used directly (e.g. as value of the `className` prop), but rather handed to emotion so it can handle it (e.g. as value of `css` prop).\";\n }\n };\n }\n\n return {\n name: name,\n styles: styles,\n next: cursor\n };\n};\n\nexport { serializeStyles };\n","var isBrowser = \"object\" !== 'undefined';\nfunction getRegisteredStyles(registered, registeredStyles, classNames) {\n var rawClassName = '';\n classNames.split(' ').forEach(function (className) {\n if (registered[className] !== undefined) {\n registeredStyles.push(registered[className]);\n } else {\n rawClassName += className + \" \";\n }\n });\n return rawClassName;\n}\nvar insertStyles = function insertStyles(cache, serialized, isStringTag) {\n var className = cache.key + \"-\" + serialized.name;\n\n if ( // we only need to add the styles to the registered cache if the\n // class name could be used further down\n // the tree but if it's a string tag, we know it won't\n // so we don't have to add it to registered cache.\n // this improves memory usage since we can avoid storing the whole style string\n (isStringTag === false || // we need to always store it if we're in compat mode and\n // in node since emotion-server relies on whether a style is in\n // the registered cache to know whether a style is global or not\n // also, note that this check will be dead code eliminated in the browser\n isBrowser === false && cache.compat !== undefined) && cache.registered[className] === undefined) {\n cache.registered[className] = serialized.styles;\n }\n\n if (cache.inserted[serialized.name] === undefined) {\n var current = serialized;\n\n do {\n var maybeStyles = cache.insert(\".\" + className, current, cache.sheet, true);\n\n current = current.next;\n } while (current !== undefined);\n }\n};\n\nexport { getRegisteredStyles, insertStyles };\n","import createCache from '@emotion/cache';\nimport { serializeStyles } from '@emotion/serialize';\nimport { getRegisteredStyles, insertStyles } from '@emotion/utils';\n\nfunction insertWithoutScoping(cache, serialized) {\n if (cache.inserted[serialized.name] === undefined) {\n return cache.insert('', serialized, cache.sheet, true);\n }\n}\n\nfunction merge(registered, css, className) {\n var registeredStyles = [];\n var rawClassName = getRegisteredStyles(registered, registeredStyles, className);\n\n if (registeredStyles.length < 2) {\n return className;\n }\n\n return rawClassName + css(registeredStyles);\n}\n\nvar createEmotion = function createEmotion(options) {\n var cache = createCache(options); // $FlowFixMe\n\n cache.sheet.speedy = function (value) {\n if (process.env.NODE_ENV !== 'production' && this.ctr !== 0) {\n throw new Error('speedy must be changed before any rules are inserted');\n }\n\n this.isSpeedy = value;\n };\n\n cache.compat = true;\n\n var css = function css() {\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var serialized = serializeStyles(args, cache.registered, undefined);\n insertStyles(cache, serialized, false);\n return cache.key + \"-\" + serialized.name;\n };\n\n var keyframes = function keyframes() {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n var serialized = serializeStyles(args, cache.registered);\n var animation = \"animation-\" + serialized.name;\n insertWithoutScoping(cache, {\n name: serialized.name,\n styles: \"@keyframes \" + animation + \"{\" + serialized.styles + \"}\"\n });\n return animation;\n };\n\n var injectGlobal = function injectGlobal() {\n for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n args[_key3] = arguments[_key3];\n }\n\n var serialized = serializeStyles(args, cache.registered);\n insertWithoutScoping(cache, serialized);\n };\n\n var cx = function cx() {\n for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n return merge(cache.registered, css, classnames(args));\n };\n\n return {\n css: css,\n cx: cx,\n injectGlobal: injectGlobal,\n keyframes: keyframes,\n hydrate: function hydrate(ids) {\n ids.forEach(function (key) {\n cache.inserted[key] = true;\n });\n },\n flush: function flush() {\n cache.registered = {};\n cache.inserted = {};\n cache.sheet.flush();\n },\n // $FlowFixMe\n sheet: cache.sheet,\n cache: cache,\n getRegisteredStyles: getRegisteredStyles.bind(null, cache.registered),\n merge: merge.bind(null, cache.registered, css)\n };\n};\n\nvar classnames = function classnames(args) {\n var cls = '';\n\n for (var i = 0; i < args.length; i++) {\n var arg = args[i];\n if (arg == null) continue;\n var toAdd = void 0;\n\n switch (typeof arg) {\n case 'boolean':\n break;\n\n case 'object':\n {\n if (Array.isArray(arg)) {\n toAdd = classnames(arg);\n } else {\n toAdd = '';\n\n for (var k in arg) {\n if (arg[k] && k) {\n toAdd && (toAdd += ' ');\n toAdd += k;\n }\n }\n }\n\n break;\n }\n\n default:\n {\n toAdd = arg;\n }\n }\n\n if (toAdd) {\n cls && (cls += ' ');\n cls += toAdd;\n }\n }\n\n return cls;\n};\n\nexport default createEmotion;\n","import createEmotion from 'create-emotion';\n\nvar _createEmotion = createEmotion(),\n flush = _createEmotion.flush,\n hydrate = _createEmotion.hydrate,\n cx = _createEmotion.cx,\n merge = _createEmotion.merge,\n getRegisteredStyles = _createEmotion.getRegisteredStyles,\n injectGlobal = _createEmotion.injectGlobal,\n keyframes = _createEmotion.keyframes,\n css = _createEmotion.css,\n sheet = _createEmotion.sheet,\n cache = _createEmotion.cache;\n\nexport { cache, css, cx, flush, getRegisteredStyles, hydrate, injectGlobal, keyframes, merge, sheet };\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\nif (process.env.NODE_ENV !== 'production') {\n var ReactIs = require('react-is');\n\n // By explicitly using `prop-types` you are opting into new development behavior.\n // http://fb.me/prop-types-in-prod\n var throwOnDirectAccess = true;\n module.exports = require('./factoryWithTypeCheckers')(ReactIs.isElement, throwOnDirectAccess);\n} else {\n // By explicitly using `prop-types` you are opting into new production behavior.\n // http://fb.me/prop-types-in-prod\n module.exports = require('./factoryWithThrowingShims')();\n}\n","import objectWithoutPropertiesLoose from \"./objectWithoutPropertiesLoose.js\";\nexport default function _objectWithoutProperties(source, excluded) {\n if (source == null) return {};\n var target = objectWithoutPropertiesLoose(source, excluded);\n var key, i;\n\n if (Object.getOwnPropertySymbols) {\n var sourceSymbolKeys = Object.getOwnPropertySymbols(source);\n\n for (i = 0; i < sourceSymbolKeys.length; i++) {\n key = sourceSymbolKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;\n target[key] = source[key];\n }\n }\n\n return target;\n}","export default function _extends() {\n _extends = Object.assign || function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n\n return target;\n };\n\n return _extends.apply(this, arguments);\n}","export default function _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}","function _defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, descriptor.key, descriptor);\n }\n}\n\nexport default function _createClass(Constructor, protoProps, staticProps) {\n if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n if (staticProps) _defineProperties(Constructor, staticProps);\n return Constructor;\n}","import setPrototypeOf from \"./setPrototypeOf.js\";\nexport default function _inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function\");\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n writable: true,\n configurable: true\n }\n });\n if (superClass) setPrototypeOf(subClass, superClass);\n}","import arrayWithoutHoles from \"./arrayWithoutHoles\";\nimport iterableToArray from \"./iterableToArray\";\nimport unsupportedIterableToArray from \"./unsupportedIterableToArray\";\nimport nonIterableSpread from \"./nonIterableSpread\";\nexport default function _toConsumableArray(arr) {\n return arrayWithoutHoles(arr) || iterableToArray(arr) || unsupportedIterableToArray(arr) || nonIterableSpread();\n}","import arrayLikeToArray from \"./arrayLikeToArray\";\nexport default function _arrayWithoutHoles(arr) {\n if (Array.isArray(arr)) return arrayLikeToArray(arr);\n}","export default function _nonIterableSpread() {\n throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}","function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {\n try {\n var info = gen[key](arg);\n var value = info.value;\n } catch (error) {\n reject(error);\n return;\n }\n\n if (info.done) {\n resolve(value);\n } else {\n Promise.resolve(value).then(_next, _throw);\n }\n}\n\nexport default function _asyncToGenerator(fn) {\n return function () {\n var self = this,\n args = arguments;\n return new Promise(function (resolve, reject) {\n var gen = fn.apply(self, args);\n\n function _next(value) {\n asyncGeneratorStep(gen, resolve, reject, _next, _throw, \"next\", value);\n }\n\n function _throw(err) {\n asyncGeneratorStep(gen, resolve, reject, _next, _throw, \"throw\", err);\n }\n\n _next(undefined);\n });\n };\n}","export default function _assertThisInitialized(self) {\n if (self === void 0) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return self;\n}","import getPrototypeOf from \"./getPrototypeOf.js\";\nimport isNativeReflectConstruct from \"./isNativeReflectConstruct.js\";\nimport possibleConstructorReturn from \"./possibleConstructorReturn.js\";\nexport default function _createSuper(Derived) {\n var hasNativeReflectConstruct = isNativeReflectConstruct();\n return function _createSuperInternal() {\n var Super = getPrototypeOf(Derived),\n result;\n\n if (hasNativeReflectConstruct) {\n var NewTarget = getPrototypeOf(this).constructor;\n result = Reflect.construct(Super, arguments, NewTarget);\n } else {\n result = Super.apply(this, arguments);\n }\n\n return possibleConstructorReturn(this, result);\n };\n}","export default function _isNativeReflectConstruct() {\n if (typeof Reflect === \"undefined\" || !Reflect.construct) return false;\n if (Reflect.construct.sham) return false;\n if (typeof Proxy === \"function\") return true;\n\n try {\n Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));\n return true;\n } catch (e) {\n return false;\n }\n}","'use strict';\n\nif (process.env.NODE_ENV === 'production') {\n module.exports = require('./cjs/react-jsx-runtime.production.min.js');\n} else {\n module.exports = require('./cjs/react-jsx-runtime.development.js');\n}\n","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _classCallCheck from \"@babel/runtime/helpers/esm/classCallCheck\";\nimport _createClass from \"@babel/runtime/helpers/esm/createClass\";\nimport _inherits from \"@babel/runtime/helpers/esm/inherits\";\nimport _createSuper from \"@babel/runtime/helpers/esm/createSuper\";\nimport * as React from 'react';\nimport memoizeOne from 'memoize-one';\nimport devWarning from '../_util/devWarning';\nimport { changeConfirmLocale } from '../modal/locale';\nimport LocaleContext from './context';\nexport var ANT_MARK = 'internalMark';\n\nvar LocaleProvider = /*#__PURE__*/function (_React$Component) {\n _inherits(LocaleProvider, _React$Component);\n\n var _super = _createSuper(LocaleProvider);\n\n function LocaleProvider(props) {\n var _this;\n\n _classCallCheck(this, LocaleProvider);\n\n _this = _super.call(this, props);\n _this.getMemoizedContextValue = memoizeOne(function (localeValue) {\n return _extends(_extends({}, localeValue), {\n exist: true\n });\n });\n changeConfirmLocale(props.locale && props.locale.Modal);\n devWarning(props._ANT_MARK__ === ANT_MARK, 'LocaleProvider', '`LocaleProvider` is deprecated. Please use `locale` with `ConfigProvider` instead: http://u.ant.design/locale');\n return _this;\n }\n\n _createClass(LocaleProvider, [{\n key: \"componentDidMount\",\n value: function componentDidMount() {\n changeConfirmLocale(this.props.locale && this.props.locale.Modal);\n }\n }, {\n key: \"componentDidUpdate\",\n value: function componentDidUpdate(prevProps) {\n var locale = this.props.locale;\n\n if (prevProps.locale !== locale) {\n changeConfirmLocale(locale && locale.Modal);\n }\n }\n }, {\n key: \"componentWillUnmount\",\n value: function componentWillUnmount() {\n changeConfirmLocale();\n }\n }, {\n key: \"render\",\n value: function render() {\n var _this$props = this.props,\n locale = _this$props.locale,\n children = _this$props.children;\n var contextValue = this.getMemoizedContextValue(locale);\n return /*#__PURE__*/React.createElement(LocaleContext.Provider, {\n value: contextValue\n }, children);\n }\n }]);\n\n return LocaleProvider;\n}(React.Component);\n\nexport { LocaleProvider as default };\nLocaleProvider.defaultProps = {\n locale: {}\n};","/* eslint-disable import/prefer-default-export, prefer-destructuring */\nimport { updateCSS } from \"rc-util/es/Dom/dynamicCSS\";\nimport canUseDom from \"rc-util/es/Dom/canUseDom\";\nimport { TinyColor } from '@ctrl/tinycolor';\nimport { generate } from '@ant-design/colors';\nimport devWarning from '../_util/devWarning';\nvar dynamicStyleMark = \"-ant-\".concat(Date.now(), \"-\").concat(Math.random());\nexport function registerTheme(globalPrefixCls, theme) {\n var variables = {};\n\n var formatColor = function formatColor(color, updater) {\n var clone = color.clone();\n clone = (updater === null || updater === void 0 ? void 0 : updater(clone)) || clone;\n return clone.toRgbString();\n };\n\n var fillColor = function fillColor(colorVal, type) {\n var baseColor = new TinyColor(colorVal);\n var colorPalettes = generate(baseColor.toRgbString());\n variables[\"\".concat(type, \"-color\")] = formatColor(baseColor);\n variables[\"\".concat(type, \"-color-disabled\")] = colorPalettes[1];\n variables[\"\".concat(type, \"-color-hover\")] = colorPalettes[4];\n variables[\"\".concat(type, \"-color-active\")] = colorPalettes[7];\n variables[\"\".concat(type, \"-color-outline\")] = baseColor.clone().setAlpha(0.2).toRgbString();\n variables[\"\".concat(type, \"-color-deprecated-bg\")] = colorPalettes[1];\n variables[\"\".concat(type, \"-color-deprecated-border\")] = colorPalettes[3];\n }; // ================ Primary Color ================\n\n\n if (theme.primaryColor) {\n fillColor(theme.primaryColor, 'primary');\n var primaryColor = new TinyColor(theme.primaryColor);\n var primaryColors = generate(primaryColor.toRgbString()); // Legacy - We should use semantic naming standard\n\n primaryColors.forEach(function (color, index) {\n variables[\"primary-\".concat(index + 1)] = color;\n }); // Deprecated\n\n variables['primary-color-deprecated-l-35'] = formatColor(primaryColor, function (c) {\n return c.lighten(35);\n });\n variables['primary-color-deprecated-l-20'] = formatColor(primaryColor, function (c) {\n return c.lighten(20);\n });\n variables['primary-color-deprecated-t-20'] = formatColor(primaryColor, function (c) {\n return c.tint(20);\n });\n variables['primary-color-deprecated-t-50'] = formatColor(primaryColor, function (c) {\n return c.tint(50);\n });\n variables['primary-color-deprecated-f-12'] = formatColor(primaryColor, function (c) {\n return c.setAlpha(c.getAlpha() * 0.12);\n });\n var primaryActiveColor = new TinyColor(primaryColors[0]);\n variables['primary-color-active-deprecated-f-30'] = formatColor(primaryActiveColor, function (c) {\n return c.setAlpha(c.getAlpha() * 0.3);\n });\n variables['primary-color-active-deprecated-d-02'] = formatColor(primaryActiveColor, function (c) {\n return c.darken(2);\n });\n } // ================ Success Color ================\n\n\n if (theme.successColor) {\n fillColor(theme.successColor, 'success');\n } // ================ Warning Color ================\n\n\n if (theme.warningColor) {\n fillColor(theme.warningColor, 'warning');\n } // ================= Error Color =================\n\n\n if (theme.errorColor) {\n fillColor(theme.errorColor, 'error');\n } // ================= Info Color ==================\n\n\n if (theme.infoColor) {\n fillColor(theme.infoColor, 'info');\n } // Convert to css variables\n\n\n var cssList = Object.keys(variables).map(function (key) {\n return \"--\".concat(globalPrefixCls, \"-\").concat(key, \": \").concat(variables[key], \";\");\n });\n\n if (canUseDom()) {\n updateCSS(\"\\n :root {\\n \".concat(cssList.join('\\n'), \"\\n }\\n \"), \"\".concat(dynamicStyleMark, \"-dynamic-theme\"));\n } else {\n devWarning(false, 'ConfigProvider', 'SSR do not support dynamic theme with css variables.');\n }\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport * as React from 'react';\nimport IconContext from \"@ant-design/icons/es/components/Context\";\nimport { FormProvider as RcFormProvider } from 'rc-field-form';\nimport useMemo from \"rc-util/es/hooks/useMemo\";\nimport LocaleProvider, { ANT_MARK } from '../locale-provider';\nimport LocaleReceiver from '../locale-provider/LocaleReceiver';\nimport { ConfigConsumer, ConfigContext } from './context';\nimport SizeContext, { SizeContextProvider } from './SizeContext';\nimport message from '../message';\nimport notification from '../notification';\nimport { registerTheme } from './cssVariables';\nimport defaultLocale from '../locale/default';\nexport { ConfigContext, ConfigConsumer };\nexport var configConsumerProps = ['getTargetContainer', 'getPopupContainer', 'rootPrefixCls', 'getPrefixCls', 'renderEmpty', 'csp', 'autoInsertSpaceInButton', 'locale', 'pageHeader']; // These props is used by `useContext` directly in sub component\n\nvar PASSED_PROPS = ['getTargetContainer', 'getPopupContainer', 'renderEmpty', 'pageHeader', 'input', 'form'];\nexport var defaultPrefixCls = 'ant';\nexport var defaultIconPrefixCls = 'anticon';\nvar globalPrefixCls;\nvar globalIconPrefixCls;\n\nfunction getGlobalPrefixCls() {\n return globalPrefixCls || defaultPrefixCls;\n}\n\nfunction getGlobalIconPrefixCls() {\n return globalIconPrefixCls || defaultIconPrefixCls;\n}\n\nvar setGlobalConfig = function setGlobalConfig(_ref) {\n var prefixCls = _ref.prefixCls,\n iconPrefixCls = _ref.iconPrefixCls,\n theme = _ref.theme;\n\n if (prefixCls !== undefined) {\n globalPrefixCls = prefixCls;\n }\n\n if (iconPrefixCls !== undefined) {\n globalIconPrefixCls = iconPrefixCls;\n }\n\n if (theme) {\n registerTheme(getGlobalPrefixCls(), theme);\n }\n};\n\nexport var globalConfig = function globalConfig() {\n return {\n getPrefixCls: function getPrefixCls(suffixCls, customizePrefixCls) {\n if (customizePrefixCls) return customizePrefixCls;\n return suffixCls ? \"\".concat(getGlobalPrefixCls(), \"-\").concat(suffixCls) : getGlobalPrefixCls();\n },\n getIconPrefixCls: getGlobalIconPrefixCls,\n getRootPrefixCls: function getRootPrefixCls(rootPrefixCls, customizePrefixCls) {\n // Customize rootPrefixCls is first priority\n if (rootPrefixCls) {\n return rootPrefixCls;\n } // If Global prefixCls provided, use this\n\n\n if (globalPrefixCls) {\n return globalPrefixCls;\n } // [Legacy] If customize prefixCls provided, we cut it to get the prefixCls\n\n\n if (customizePrefixCls && customizePrefixCls.includes('-')) {\n return customizePrefixCls.replace(/^(.*)-[^-]*$/, '$1');\n } // Fallback to default prefixCls\n\n\n return getGlobalPrefixCls();\n }\n };\n};\n\nvar ProviderChildren = function ProviderChildren(props) {\n var _a, _b;\n\n var children = props.children,\n csp = props.csp,\n autoInsertSpaceInButton = props.autoInsertSpaceInButton,\n form = props.form,\n locale = props.locale,\n componentSize = props.componentSize,\n direction = props.direction,\n space = props.space,\n virtual = props.virtual,\n dropdownMatchSelectWidth = props.dropdownMatchSelectWidth,\n legacyLocale = props.legacyLocale,\n parentContext = props.parentContext,\n iconPrefixCls = props.iconPrefixCls;\n var getPrefixCls = React.useCallback(function (suffixCls, customizePrefixCls) {\n var prefixCls = props.prefixCls;\n if (customizePrefixCls) return customizePrefixCls;\n var mergedPrefixCls = prefixCls || parentContext.getPrefixCls('');\n return suffixCls ? \"\".concat(mergedPrefixCls, \"-\").concat(suffixCls) : mergedPrefixCls;\n }, [parentContext.getPrefixCls, props.prefixCls]);\n\n var config = _extends(_extends({}, parentContext), {\n csp: csp,\n autoInsertSpaceInButton: autoInsertSpaceInButton,\n locale: locale || legacyLocale,\n direction: direction,\n space: space,\n virtual: virtual,\n dropdownMatchSelectWidth: dropdownMatchSelectWidth,\n getPrefixCls: getPrefixCls\n }); // Pass the props used by `useContext` directly with child component.\n // These props should merged into `config`.\n\n\n PASSED_PROPS.forEach(function (propName) {\n var propValue = props[propName];\n\n if (propValue) {\n config[propName] = propValue;\n }\n }); // https://github.com/ant-design/ant-design/issues/27617\n\n var memoedConfig = useMemo(function () {\n return config;\n }, config, function (prevConfig, currentConfig) {\n var prevKeys = Object.keys(prevConfig);\n var currentKeys = Object.keys(currentConfig);\n return prevKeys.length !== currentKeys.length || prevKeys.some(function (key) {\n return prevConfig[key] !== currentConfig[key];\n });\n });\n var memoIconContextValue = React.useMemo(function () {\n return {\n prefixCls: iconPrefixCls,\n csp: csp\n };\n }, [iconPrefixCls]);\n var childNode = children; // Additional Form provider\n\n var validateMessages = {};\n\n if (locale) {\n validateMessages = ((_a = locale.Form) === null || _a === void 0 ? void 0 : _a.defaultValidateMessages) || ((_b = defaultLocale.Form) === null || _b === void 0 ? void 0 : _b.defaultValidateMessages) || {};\n }\n\n if (form && form.validateMessages) {\n validateMessages = _extends(_extends({}, validateMessages), form.validateMessages);\n }\n\n if (Object.keys(validateMessages).length > 0) {\n childNode = /*#__PURE__*/React.createElement(RcFormProvider, {\n validateMessages: validateMessages\n }, children);\n }\n\n if (locale) {\n childNode = /*#__PURE__*/React.createElement(LocaleProvider, {\n locale: locale,\n _ANT_MARK__: ANT_MARK\n }, childNode);\n }\n\n if (iconPrefixCls) {\n childNode = /*#__PURE__*/React.createElement(IconContext.Provider, {\n value: memoIconContextValue\n }, childNode);\n }\n\n if (componentSize) {\n childNode = /*#__PURE__*/React.createElement(SizeContextProvider, {\n size: componentSize\n }, childNode);\n }\n\n return /*#__PURE__*/React.createElement(ConfigContext.Provider, {\n value: memoedConfig\n }, childNode);\n};\n\nvar ConfigProvider = function ConfigProvider(props) {\n React.useEffect(function () {\n if (props.direction) {\n message.config({\n rtl: props.direction === 'rtl'\n });\n notification.config({\n rtl: props.direction === 'rtl'\n });\n }\n }, [props.direction]);\n return /*#__PURE__*/React.createElement(LocaleReceiver, null, function (_, __, legacyLocale) {\n return /*#__PURE__*/React.createElement(ConfigConsumer, null, function (context) {\n return /*#__PURE__*/React.createElement(ProviderChildren, _extends({\n parentContext: context,\n legacyLocale: legacyLocale\n }, props));\n });\n });\n};\n/** @private internal Usage. do not use in your production */\n\n\nConfigProvider.ConfigContext = ConfigContext;\nConfigProvider.SizeContext = SizeContext;\nConfigProvider.config = setGlobalConfig;\nexport default ConfigProvider;","// ES6 Map\nvar map\ntry {\n map = Map\n} catch (_) { }\nvar set\n\n// ES6 Set\ntry {\n set = Set\n} catch (_) { }\n\nfunction baseClone (src, circulars, clones) {\n // Null/undefined/functions/etc\n if (!src || typeof src !== 'object' || typeof src === 'function') {\n return src\n }\n\n // DOM Node\n if (src.nodeType && 'cloneNode' in src) {\n return src.cloneNode(true)\n }\n\n // Date\n if (src instanceof Date) {\n return new Date(src.getTime())\n }\n\n // RegExp\n if (src instanceof RegExp) {\n return new RegExp(src)\n }\n\n // Arrays\n if (Array.isArray(src)) {\n return src.map(clone)\n }\n\n // ES6 Maps\n if (map && src instanceof map) {\n return new Map(Array.from(src.entries()))\n }\n\n // ES6 Sets\n if (set && src instanceof set) {\n return new Set(Array.from(src.values()))\n }\n\n // Object\n if (src instanceof Object) {\n circulars.push(src)\n var obj = Object.create(src)\n clones.push(obj)\n for (var key in src) {\n var idx = circulars.findIndex(function (i) {\n return i === src[key]\n })\n obj[key] = idx > -1 ? clones[idx] : baseClone(src[key], circulars, clones)\n }\n return obj\n }\n\n // ???\n return src\n}\n\nexport default function clone (src) {\n return baseClone(src, [], [])\n}\n","const toString = Object.prototype.toString;\nconst errorToString = Error.prototype.toString;\nconst regExpToString = RegExp.prototype.toString;\nconst symbolToString = typeof Symbol !== 'undefined' ? Symbol.prototype.toString : () => '';\nconst SYMBOL_REGEXP = /^Symbol\\((.*)\\)(.*)$/;\n\nfunction printNumber(val) {\n if (val != +val) return 'NaN';\n const isNegativeZero = val === 0 && 1 / val < 0;\n return isNegativeZero ? '-0' : '' + val;\n}\n\nfunction printSimpleValue(val, quoteStrings = false) {\n if (val == null || val === true || val === false) return '' + val;\n const typeOf = typeof val;\n if (typeOf === 'number') return printNumber(val);\n if (typeOf === 'string') return quoteStrings ? `\"${val}\"` : val;\n if (typeOf === 'function') return '[Function ' + (val.name || 'anonymous') + ']';\n if (typeOf === 'symbol') return symbolToString.call(val).replace(SYMBOL_REGEXP, 'Symbol($1)');\n const tag = toString.call(val).slice(8, -1);\n if (tag === 'Date') return isNaN(val.getTime()) ? '' + val : val.toISOString(val);\n if (tag === 'Error' || val instanceof Error) return '[' + errorToString.call(val) + ']';\n if (tag === 'RegExp') return regExpToString.call(val);\n return null;\n}\n\nexport default function printValue(value, quoteStrings) {\n let result = printSimpleValue(value, quoteStrings);\n if (result !== null) return result;\n return JSON.stringify(value, function (key, value) {\n let result = printSimpleValue(this[key], quoteStrings);\n if (result !== null) return result;\n return value;\n }, 2);\n}","import printValue from './util/printValue';\nexport let mixed = {\n default: '${path} is invalid',\n required: '${path} is a required field',\n oneOf: '${path} must be one of the following values: ${values}',\n notOneOf: '${path} must not be one of the following values: ${values}',\n notType: ({\n path,\n type,\n value,\n originalValue\n }) => {\n let isCast = originalValue != null && originalValue !== value;\n let msg = `${path} must be a \\`${type}\\` type, ` + `but the final value was: \\`${printValue(value, true)}\\`` + (isCast ? ` (cast from the value \\`${printValue(originalValue, true)}\\`).` : '.');\n\n if (value === null) {\n msg += `\\n If \"null\" is intended as an empty value be sure to mark the schema as \\`.nullable()\\``;\n }\n\n return msg;\n },\n defined: '${path} must be defined'\n};\nexport let string = {\n length: '${path} must be exactly ${length} characters',\n min: '${path} must be at least ${min} characters',\n max: '${path} must be at most ${max} characters',\n matches: '${path} must match the following: \"${regex}\"',\n email: '${path} must be a valid email',\n url: '${path} must be a valid URL',\n uuid: '${path} must be a valid UUID',\n trim: '${path} must be a trimmed string',\n lowercase: '${path} must be a lowercase string',\n uppercase: '${path} must be a upper case string'\n};\nexport let number = {\n min: '${path} must be greater than or equal to ${min}',\n max: '${path} must be less than or equal to ${max}',\n lessThan: '${path} must be less than ${less}',\n moreThan: '${path} must be greater than ${more}',\n positive: '${path} must be a positive number',\n negative: '${path} must be a negative number',\n integer: '${path} must be an integer'\n};\nexport let date = {\n min: '${path} field must be later than ${min}',\n max: '${path} field must be at earlier than ${max}'\n};\nexport let boolean = {\n isValue: '${path} field must be ${value}'\n};\nexport let object = {\n noUnknown: '${path} field has unspecified keys: ${unknown}'\n};\nexport let array = {\n min: '${path} field must have at least ${min} items',\n max: '${path} field must have less than or equal to ${max} items',\n length: '${path} must have ${length} items'\n};\nexport default Object.assign(Object.create(null), {\n mixed,\n string,\n number,\n date,\n object,\n array,\n boolean\n});","const isSchema = obj => obj && obj.__isYupSchema__;\n\nexport default isSchema;","import has from 'lodash/has';\nimport isSchema from './util/isSchema';\n\nclass Condition {\n constructor(refs, options) {\n this.fn = void 0;\n this.refs = refs;\n this.refs = refs;\n\n if (typeof options === 'function') {\n this.fn = options;\n return;\n }\n\n if (!has(options, 'is')) throw new TypeError('`is:` is required for `when()` conditions');\n if (!options.then && !options.otherwise) throw new TypeError('either `then:` or `otherwise:` is required for `when()` conditions');\n let {\n is,\n then,\n otherwise\n } = options;\n let check = typeof is === 'function' ? is : (...values) => values.every(value => value === is);\n\n this.fn = function (...args) {\n let options = args.pop();\n let schema = args.pop();\n let branch = check(...args) ? then : otherwise;\n if (!branch) return undefined;\n if (typeof branch === 'function') return branch(schema);\n return schema.concat(branch.resolve(options));\n };\n }\n\n resolve(base, options) {\n let values = this.refs.map(ref => ref.getValue(options == null ? void 0 : options.value, options == null ? void 0 : options.parent, options == null ? void 0 : options.context));\n let schema = this.fn.apply(base, values.concat(base, options));\n if (schema === undefined || schema === base) return base;\n if (!isSchema(schema)) throw new TypeError('conditions must return a schema object');\n return schema.resolve(options);\n }\n\n}\n\nexport default Condition;","import setPrototypeOf from \"./setPrototypeOf\";\nimport isNativeReflectConstruct from \"./isNativeReflectConstruct\";\nexport default function _construct(Parent, args, Class) {\n if (isNativeReflectConstruct()) {\n _construct = Reflect.construct;\n } else {\n _construct = function _construct(Parent, args, Class) {\n var a = [null];\n a.push.apply(a, args);\n var Constructor = Function.bind.apply(Parent, a);\n var instance = new Constructor();\n if (Class) setPrototypeOf(instance, Class.prototype);\n return instance;\n };\n }\n\n return _construct.apply(null, arguments);\n}","import getPrototypeOf from \"./getPrototypeOf\";\nimport setPrototypeOf from \"./setPrototypeOf\";\nimport isNativeFunction from \"./isNativeFunction\";\nimport construct from \"./construct\";\nexport default function _wrapNativeSuper(Class) {\n var _cache = typeof Map === \"function\" ? new Map() : undefined;\n\n _wrapNativeSuper = function _wrapNativeSuper(Class) {\n if (Class === null || !isNativeFunction(Class)) return Class;\n\n if (typeof Class !== \"function\") {\n throw new TypeError(\"Super expression must either be null or a function\");\n }\n\n if (typeof _cache !== \"undefined\") {\n if (_cache.has(Class)) return _cache.get(Class);\n\n _cache.set(Class, Wrapper);\n }\n\n function Wrapper() {\n return construct(Class, arguments, getPrototypeOf(this).constructor);\n }\n\n Wrapper.prototype = Object.create(Class.prototype, {\n constructor: {\n value: Wrapper,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n return setPrototypeOf(Wrapper, Class);\n };\n\n return _wrapNativeSuper(Class);\n}","export default function _isNativeFunction(fn) {\n return Function.toString.call(fn).indexOf(\"[native code]\") !== -1;\n}","export default function toArray(value) {\n return value == null ? [] : [].concat(value);\n}","function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nimport printValue from './util/printValue';\nimport toArray from './util/toArray';\nlet strReg = /\\$\\{\\s*(\\w+)\\s*\\}/g;\nexport default class ValidationError extends Error {\n static formatError(message, params) {\n const path = params.label || params.path || 'this';\n if (path !== params.path) params = _extends({}, params, {\n path\n });\n if (typeof message === 'string') return message.replace(strReg, (_, key) => printValue(params[key]));\n if (typeof message === 'function') return message(params);\n return message;\n }\n\n static isError(err) {\n return err && err.name === 'ValidationError';\n }\n\n constructor(errorOrErrors, value, field, type) {\n super();\n this.value = void 0;\n this.path = void 0;\n this.type = void 0;\n this.errors = void 0;\n this.params = void 0;\n this.inner = void 0;\n this.name = 'ValidationError';\n this.value = value;\n this.path = field;\n this.type = type;\n this.errors = [];\n this.inner = [];\n toArray(errorOrErrors).forEach(err => {\n if (ValidationError.isError(err)) {\n this.errors.push(...err.errors);\n this.inner = this.inner.concat(err.inner.length ? err.inner : err);\n } else {\n this.errors.push(err);\n }\n });\n this.message = this.errors.length > 1 ? `${this.errors.length} errors occurred` : this.errors[0];\n if (Error.captureStackTrace) Error.captureStackTrace(this, ValidationError);\n }\n\n}","import ValidationError from '../ValidationError';\n\nconst once = cb => {\n let fired = false;\n return (...args) => {\n if (fired) return;\n fired = true;\n cb(...args);\n };\n};\n\nexport default function runTests(options, cb) {\n let {\n endEarly,\n tests,\n args,\n value,\n errors,\n sort,\n path\n } = options;\n let callback = once(cb);\n let count = tests.length;\n const nestedErrors = [];\n errors = errors ? errors : [];\n if (!count) return errors.length ? callback(new ValidationError(errors, value, path)) : callback(null, value);\n\n for (let i = 0; i < tests.length; i++) {\n const test = tests[i];\n test(args, function finishTestRun(err) {\n if (err) {\n // always return early for non validation errors\n if (!ValidationError.isError(err)) {\n return callback(err, value);\n }\n\n if (endEarly) {\n err.value = value;\n return callback(err, value);\n }\n\n nestedErrors.push(err);\n }\n\n if (--count <= 0) {\n if (nestedErrors.length) {\n if (sort) nestedErrors.sort(sort); //show parent errors after the nested ones: name.first, name\n\n if (errors.length) nestedErrors.push(...errors);\n errors = nestedErrors;\n }\n\n if (errors.length) {\n callback(new ValidationError(errors, value, path), value);\n return;\n }\n\n callback(null, value);\n }\n });\n }\n}","import { getter } from 'property-expr';\nconst prefixes = {\n context: '$',\n value: '.'\n};\nexport function create(key, options) {\n return new Reference(key, options);\n}\nexport default class Reference {\n constructor(key, options = {}) {\n this.key = void 0;\n this.isContext = void 0;\n this.isValue = void 0;\n this.isSibling = void 0;\n this.path = void 0;\n this.getter = void 0;\n this.map = void 0;\n if (typeof key !== 'string') throw new TypeError('ref must be a string, got: ' + key);\n this.key = key.trim();\n if (key === '') throw new TypeError('ref must be a non-empty string');\n this.isContext = this.key[0] === prefixes.context;\n this.isValue = this.key[0] === prefixes.value;\n this.isSibling = !this.isContext && !this.isValue;\n let prefix = this.isContext ? prefixes.context : this.isValue ? prefixes.value : '';\n this.path = this.key.slice(prefix.length);\n this.getter = this.path && getter(this.path, true);\n this.map = options.map;\n }\n\n getValue(value, parent, context) {\n let result = this.isContext ? context : this.isValue ? value : parent;\n if (this.getter) result = this.getter(result || {});\n if (this.map) result = this.map(result);\n return result;\n }\n /**\n *\n * @param {*} value\n * @param {Object} options\n * @param {Object=} options.context\n * @param {Object=} options.parent\n */\n\n\n cast(value, options) {\n return this.getValue(value, options == null ? void 0 : options.parent, options == null ? void 0 : options.context);\n }\n\n resolve() {\n return this;\n }\n\n describe() {\n return {\n type: 'ref',\n key: this.key\n };\n }\n\n toString() {\n return `Ref(${this.key})`;\n }\n\n static isRef(value) {\n return value && value.__isYupRef;\n }\n\n} // @ts-ignore\n\nReference.prototype.__isYupRef = true;","function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\nimport mapValues from 'lodash/mapValues';\nimport ValidationError from '../ValidationError';\nimport Ref from '../Reference';\nexport default function createValidation(config) {\n function validate(_ref, cb) {\n let {\n value,\n path = '',\n label,\n options,\n originalValue,\n sync\n } = _ref,\n rest = _objectWithoutPropertiesLoose(_ref, [\"value\", \"path\", \"label\", \"options\", \"originalValue\", \"sync\"]);\n\n const {\n name,\n test,\n params,\n message\n } = config;\n let {\n parent,\n context\n } = options;\n\n function resolve(item) {\n return Ref.isRef(item) ? item.getValue(value, parent, context) : item;\n }\n\n function createError(overrides = {}) {\n const nextParams = mapValues(_extends({\n value,\n originalValue,\n label,\n path: overrides.path || path\n }, params, overrides.params), resolve);\n const error = new ValidationError(ValidationError.formatError(overrides.message || message, nextParams), value, nextParams.path, overrides.type || name);\n error.params = nextParams;\n return error;\n }\n\n let ctx = _extends({\n path,\n parent,\n type: name,\n createError,\n resolve,\n options,\n originalValue\n }, rest);\n\n if (!sync) {\n try {\n Promise.resolve(test.call(ctx, value, ctx)).then(validOrError => {\n if (ValidationError.isError(validOrError)) cb(validOrError);else if (!validOrError) cb(createError());else cb(null, validOrError);\n }).catch(cb);\n } catch (err) {\n cb(err);\n }\n\n return;\n }\n\n let result;\n\n try {\n var _ref2;\n\n result = test.call(ctx, value, ctx);\n\n if (typeof ((_ref2 = result) == null ? void 0 : _ref2.then) === 'function') {\n throw new Error(`Validation test of type: \"${ctx.type}\" returned a Promise during a synchronous validate. ` + `This test will finish after the validate call has returned`);\n }\n } catch (err) {\n cb(err);\n return;\n }\n\n if (ValidationError.isError(result)) cb(result);else if (!result) cb(createError());else cb(null, result);\n }\n\n validate.OPTIONS = config;\n return validate;\n}","import { forEach } from 'property-expr';\n\nlet trim = part => part.substr(0, part.length - 1).substr(1);\n\nexport function getIn(schema, path, value, context = value) {\n let parent, lastPart, lastPartDebug; // root path: ''\n\n if (!path) return {\n parent,\n parentPath: path,\n schema\n };\n forEach(path, (_part, isBracket, isArray) => {\n let part = isBracket ? trim(_part) : _part;\n schema = schema.resolve({\n context,\n parent,\n value\n });\n\n if (schema.innerType) {\n let idx = isArray ? parseInt(part, 10) : 0;\n\n if (value && idx >= value.length) {\n throw new Error(`Yup.reach cannot resolve an array item at index: ${_part}, in the path: ${path}. ` + `because there is no value at that index. `);\n }\n\n parent = value;\n value = value && value[idx];\n schema = schema.innerType;\n } // sometimes the array index part of a path doesn't exist: \"nested.arr.child\"\n // in these cases the current part is the next schema and should be processed\n // in this iteration. For cases where the index signature is included this\n // check will fail and we'll handle the `child` part on the next iteration like normal\n\n\n if (!isArray) {\n if (!schema.fields || !schema.fields[part]) throw new Error(`The schema does not contain the path: ${path}. ` + `(failed at: ${lastPartDebug} which is a type: \"${schema._type}\")`);\n parent = value;\n value = value && value[part];\n schema = schema.fields[part];\n }\n\n lastPart = part;\n lastPartDebug = isBracket ? '[' + _part + ']' : '.' + _part;\n });\n return {\n schema,\n parent,\n parentPath: lastPart\n };\n}\n\nconst reach = (obj, path, value, context) => getIn(obj, path, value, context).schema;\n\nexport default reach;","import Reference from '../Reference';\nexport default class ReferenceSet {\n constructor() {\n this.list = void 0;\n this.refs = void 0;\n this.list = new Set();\n this.refs = new Map();\n }\n\n get size() {\n return this.list.size + this.refs.size;\n }\n\n describe() {\n const description = [];\n\n for (const item of this.list) description.push(item);\n\n for (const [, ref] of this.refs) description.push(ref.describe());\n\n return description;\n }\n\n toArray() {\n return Array.from(this.list).concat(Array.from(this.refs.values()));\n }\n\n resolveAll(resolve) {\n return this.toArray().reduce((acc, e) => acc.concat(Reference.isRef(e) ? resolve(e) : e), []);\n }\n\n add(value) {\n Reference.isRef(value) ? this.refs.set(value.key, value) : this.list.add(value);\n }\n\n delete(value) {\n Reference.isRef(value) ? this.refs.delete(value.key) : this.list.delete(value);\n }\n\n clone() {\n const next = new ReferenceSet();\n next.list = new Set(this.list);\n next.refs = new Map(this.refs);\n return next;\n }\n\n merge(newItems, removeItems) {\n const next = this.clone();\n newItems.list.forEach(value => next.add(value));\n newItems.refs.forEach(value => next.add(value));\n removeItems.list.forEach(value => next.delete(value));\n removeItems.refs.forEach(value => next.delete(value));\n return next;\n }\n\n}","function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\n// @ts-ignore\nimport cloneDeep from 'nanoclone';\nimport { mixed as locale } from './locale';\nimport Condition from './Condition';\nimport runTests from './util/runTests';\nimport createValidation from './util/createValidation';\nimport printValue from './util/printValue';\nimport Ref from './Reference';\nimport { getIn } from './util/reach';\nimport ValidationError from './ValidationError';\nimport ReferenceSet from './util/ReferenceSet';\nimport toArray from './util/toArray'; // const UNSET = 'unset' as const;\n\nexport default class BaseSchema {\n constructor(options) {\n this.deps = [];\n this.tests = void 0;\n this.transforms = void 0;\n this.conditions = [];\n this._mutate = void 0;\n this._typeError = void 0;\n this._whitelist = new ReferenceSet();\n this._blacklist = new ReferenceSet();\n this.exclusiveTests = Object.create(null);\n this.spec = void 0;\n this.tests = [];\n this.transforms = [];\n this.withMutation(() => {\n this.typeError(locale.notType);\n });\n this.type = (options == null ? void 0 : options.type) || 'mixed';\n this.spec = _extends({\n strip: false,\n strict: false,\n abortEarly: true,\n recursive: true,\n nullable: false,\n presence: 'optional'\n }, options == null ? void 0 : options.spec);\n } // TODO: remove\n\n\n get _type() {\n return this.type;\n }\n\n _typeCheck(_value) {\n return true;\n }\n\n clone(spec) {\n if (this._mutate) {\n if (spec) Object.assign(this.spec, spec);\n return this;\n } // if the nested value is a schema we can skip cloning, since\n // they are already immutable\n\n\n const next = Object.create(Object.getPrototypeOf(this)); // @ts-expect-error this is readonly\n\n next.type = this.type;\n next._typeError = this._typeError;\n next._whitelistError = this._whitelistError;\n next._blacklistError = this._blacklistError;\n next._whitelist = this._whitelist.clone();\n next._blacklist = this._blacklist.clone();\n next.exclusiveTests = _extends({}, this.exclusiveTests); // @ts-expect-error this is readonly\n\n next.deps = [...this.deps];\n next.conditions = [...this.conditions];\n next.tests = [...this.tests];\n next.transforms = [...this.transforms];\n next.spec = cloneDeep(_extends({}, this.spec, spec));\n return next;\n }\n\n label(label) {\n let next = this.clone();\n next.spec.label = label;\n return next;\n }\n\n meta(...args) {\n if (args.length === 0) return this.spec.meta;\n let next = this.clone();\n next.spec.meta = Object.assign(next.spec.meta || {}, args[0]);\n return next;\n } // withContext(): BaseSchema<\n // TCast,\n // TContext,\n // TOutput\n // > {\n // return this as any;\n // }\n\n\n withMutation(fn) {\n let before = this._mutate;\n this._mutate = true;\n let result = fn(this);\n this._mutate = before;\n return result;\n }\n\n concat(schema) {\n if (!schema || schema === this) return this;\n if (schema.type !== this.type && this.type !== 'mixed') throw new TypeError(`You cannot \\`concat()\\` schema's of different types: ${this.type} and ${schema.type}`);\n let base = this;\n let combined = schema.clone();\n\n const mergedSpec = _extends({}, base.spec, combined.spec); // if (combined.spec.nullable === UNSET)\n // mergedSpec.nullable = base.spec.nullable;\n // if (combined.spec.presence === UNSET)\n // mergedSpec.presence = base.spec.presence;\n\n\n combined.spec = mergedSpec;\n combined._typeError || (combined._typeError = base._typeError);\n combined._whitelistError || (combined._whitelistError = base._whitelistError);\n combined._blacklistError || (combined._blacklistError = base._blacklistError); // manually merge the blacklist/whitelist (the other `schema` takes\n // precedence in case of conflicts)\n\n combined._whitelist = base._whitelist.merge(schema._whitelist, schema._blacklist);\n combined._blacklist = base._blacklist.merge(schema._blacklist, schema._whitelist); // start with the current tests\n\n combined.tests = base.tests;\n combined.exclusiveTests = base.exclusiveTests; // manually add the new tests to ensure\n // the deduping logic is consistent\n\n combined.withMutation(next => {\n schema.tests.forEach(fn => {\n next.test(fn.OPTIONS);\n });\n });\n combined.transforms = [...base.transforms, ...combined.transforms];\n return combined;\n }\n\n isType(v) {\n if (this.spec.nullable && v === null) return true;\n return this._typeCheck(v);\n }\n\n resolve(options) {\n let schema = this;\n\n if (schema.conditions.length) {\n let conditions = schema.conditions;\n schema = schema.clone();\n schema.conditions = [];\n schema = conditions.reduce((schema, condition) => condition.resolve(schema, options), schema);\n schema = schema.resolve(options);\n }\n\n return schema;\n }\n /**\n *\n * @param {*} value\n * @param {Object} options\n * @param {*=} options.parent\n * @param {*=} options.context\n */\n\n\n cast(value, options = {}) {\n let resolvedSchema = this.resolve(_extends({\n value\n }, options));\n\n let result = resolvedSchema._cast(value, options);\n\n if (value !== undefined && options.assert !== false && resolvedSchema.isType(result) !== true) {\n let formattedValue = printValue(value);\n let formattedResult = printValue(result);\n throw new TypeError(`The value of ${options.path || 'field'} could not be cast to a value ` + `that satisfies the schema type: \"${resolvedSchema._type}\". \\n\\n` + `attempted value: ${formattedValue} \\n` + (formattedResult !== formattedValue ? `result of cast: ${formattedResult}` : ''));\n }\n\n return result;\n }\n\n _cast(rawValue, _options) {\n let value = rawValue === undefined ? rawValue : this.transforms.reduce((value, fn) => fn.call(this, value, rawValue, this), rawValue);\n\n if (value === undefined) {\n value = this.getDefault();\n }\n\n return value;\n }\n\n _validate(_value, options = {}, cb) {\n let {\n sync,\n path,\n from = [],\n originalValue = _value,\n strict = this.spec.strict,\n abortEarly = this.spec.abortEarly\n } = options;\n let value = _value;\n\n if (!strict) {\n // this._validating = true;\n value = this._cast(value, _extends({\n assert: false\n }, options)); // this._validating = false;\n } // value is cast, we can check if it meets type requirements\n\n\n let args = {\n value,\n path,\n options,\n originalValue,\n schema: this,\n label: this.spec.label,\n sync,\n from\n };\n let initialTests = [];\n if (this._typeError) initialTests.push(this._typeError);\n let finalTests = [];\n if (this._whitelistError) finalTests.push(this._whitelistError);\n if (this._blacklistError) finalTests.push(this._blacklistError);\n runTests({\n args,\n value,\n path,\n sync,\n tests: initialTests,\n endEarly: abortEarly\n }, err => {\n if (err) return void cb(err, value);\n runTests({\n tests: this.tests.concat(finalTests),\n args,\n path,\n sync,\n value,\n endEarly: abortEarly\n }, cb);\n });\n }\n\n validate(value, options, maybeCb) {\n let schema = this.resolve(_extends({}, options, {\n value\n })); // callback case is for nested validations\n\n return typeof maybeCb === 'function' ? schema._validate(value, options, maybeCb) : new Promise((resolve, reject) => schema._validate(value, options, (err, value) => {\n if (err) reject(err);else resolve(value);\n }));\n }\n\n validateSync(value, options) {\n let schema = this.resolve(_extends({}, options, {\n value\n }));\n let result;\n\n schema._validate(value, _extends({}, options, {\n sync: true\n }), (err, value) => {\n if (err) throw err;\n result = value;\n });\n\n return result;\n }\n\n isValid(value, options) {\n return this.validate(value, options).then(() => true, err => {\n if (ValidationError.isError(err)) return false;\n throw err;\n });\n }\n\n isValidSync(value, options) {\n try {\n this.validateSync(value, options);\n return true;\n } catch (err) {\n if (ValidationError.isError(err)) return false;\n throw err;\n }\n }\n\n _getDefault() {\n let defaultValue = this.spec.default;\n\n if (defaultValue == null) {\n return defaultValue;\n }\n\n return typeof defaultValue === 'function' ? defaultValue.call(this) : cloneDeep(defaultValue);\n }\n\n getDefault(options) {\n let schema = this.resolve(options || {});\n return schema._getDefault();\n }\n\n default(def) {\n if (arguments.length === 0) {\n return this._getDefault();\n }\n\n let next = this.clone({\n default: def\n });\n return next;\n }\n\n strict(isStrict = true) {\n let next = this.clone();\n next.spec.strict = isStrict;\n return next;\n }\n\n _isPresent(value) {\n return value != null;\n }\n\n defined(message = locale.defined) {\n return this.test({\n message,\n name: 'defined',\n exclusive: true,\n\n test(value) {\n return value !== undefined;\n }\n\n });\n }\n\n required(message = locale.required) {\n return this.clone({\n presence: 'required'\n }).withMutation(s => s.test({\n message,\n name: 'required',\n exclusive: true,\n\n test(value) {\n return this.schema._isPresent(value);\n }\n\n }));\n }\n\n notRequired() {\n let next = this.clone({\n presence: 'optional'\n });\n next.tests = next.tests.filter(test => test.OPTIONS.name !== 'required');\n return next;\n }\n\n nullable(isNullable = true) {\n let next = this.clone({\n nullable: isNullable !== false\n });\n return next;\n }\n\n transform(fn) {\n let next = this.clone();\n next.transforms.push(fn);\n return next;\n }\n /**\n * Adds a test function to the schema's queue of tests.\n * tests can be exclusive or non-exclusive.\n *\n * - exclusive tests, will replace any existing tests of the same name.\n * - non-exclusive: can be stacked\n *\n * If a non-exclusive test is added to a schema with an exclusive test of the same name\n * the exclusive test is removed and further tests of the same name will be stacked.\n *\n * If an exclusive test is added to a schema with non-exclusive tests of the same name\n * the previous tests are removed and further tests of the same name will replace each other.\n */\n\n\n test(...args) {\n let opts;\n\n if (args.length === 1) {\n if (typeof args[0] === 'function') {\n opts = {\n test: args[0]\n };\n } else {\n opts = args[0];\n }\n } else if (args.length === 2) {\n opts = {\n name: args[0],\n test: args[1]\n };\n } else {\n opts = {\n name: args[0],\n message: args[1],\n test: args[2]\n };\n }\n\n if (opts.message === undefined) opts.message = locale.default;\n if (typeof opts.test !== 'function') throw new TypeError('`test` is a required parameters');\n let next = this.clone();\n let validate = createValidation(opts);\n let isExclusive = opts.exclusive || opts.name && next.exclusiveTests[opts.name] === true;\n\n if (opts.exclusive) {\n if (!opts.name) throw new TypeError('Exclusive tests must provide a unique `name` identifying the test');\n }\n\n if (opts.name) next.exclusiveTests[opts.name] = !!opts.exclusive;\n next.tests = next.tests.filter(fn => {\n if (fn.OPTIONS.name === opts.name) {\n if (isExclusive) return false;\n if (fn.OPTIONS.test === validate.OPTIONS.test) return false;\n }\n\n return true;\n });\n next.tests.push(validate);\n return next;\n }\n\n when(keys, options) {\n if (!Array.isArray(keys) && typeof keys !== 'string') {\n options = keys;\n keys = '.';\n }\n\n let next = this.clone();\n let deps = toArray(keys).map(key => new Ref(key));\n deps.forEach(dep => {\n // @ts-ignore\n if (dep.isSibling) next.deps.push(dep.key);\n });\n next.conditions.push(new Condition(deps, options));\n return next;\n }\n\n typeError(message) {\n let next = this.clone();\n next._typeError = createValidation({\n message,\n name: 'typeError',\n\n test(value) {\n if (value !== undefined && !this.schema.isType(value)) return this.createError({\n params: {\n type: this.schema._type\n }\n });\n return true;\n }\n\n });\n return next;\n }\n\n oneOf(enums, message = locale.oneOf) {\n let next = this.clone();\n enums.forEach(val => {\n next._whitelist.add(val);\n\n next._blacklist.delete(val);\n });\n next._whitelistError = createValidation({\n message,\n name: 'oneOf',\n\n test(value) {\n if (value === undefined) return true;\n let valids = this.schema._whitelist;\n let resolved = valids.resolveAll(this.resolve);\n return resolved.includes(value) ? true : this.createError({\n params: {\n values: valids.toArray().join(', '),\n resolved\n }\n });\n }\n\n });\n return next;\n }\n\n notOneOf(enums, message = locale.notOneOf) {\n let next = this.clone();\n enums.forEach(val => {\n next._blacklist.add(val);\n\n next._whitelist.delete(val);\n });\n next._blacklistError = createValidation({\n message,\n name: 'notOneOf',\n\n test(value) {\n let invalids = this.schema._blacklist;\n let resolved = invalids.resolveAll(this.resolve);\n if (resolved.includes(value)) return this.createError({\n params: {\n values: invalids.toArray().join(', '),\n resolved\n }\n });\n return true;\n }\n\n });\n return next;\n }\n\n strip(strip = true) {\n let next = this.clone();\n next.spec.strip = strip;\n return next;\n }\n\n describe() {\n const next = this.clone();\n const {\n label,\n meta\n } = next.spec;\n const description = {\n meta,\n label,\n type: next.type,\n oneOf: next._whitelist.describe(),\n notOneOf: next._blacklist.describe(),\n tests: next.tests.map(fn => ({\n name: fn.OPTIONS.name,\n params: fn.OPTIONS.params\n })).filter((n, idx, list) => list.findIndex(c => c.name === n.name) === idx)\n };\n return description;\n }\n\n} // eslint-disable-next-line @typescript-eslint/no-unused-vars\n\n// @ts-expect-error\nBaseSchema.prototype.__isYupSchema__ = true;\n\nfor (const method of ['validate', 'validateSync']) BaseSchema.prototype[`${method}At`] = function (path, value, options = {}) {\n const {\n parent,\n parentPath,\n schema\n } = getIn(this, path, value, options.context);\n return schema[method](parent && parent[parentPath], _extends({}, options, {\n parent,\n path\n }));\n};\n\nfor (const alias of ['equals', 'is']) BaseSchema.prototype[alias] = BaseSchema.prototype.oneOf;\n\nfor (const alias of ['not', 'nope']) BaseSchema.prototype[alias] = BaseSchema.prototype.notOneOf;\n\nBaseSchema.prototype.optional = BaseSchema.prototype.notRequired;","import BaseSchema from './schema';\nconst Mixed = BaseSchema;\nexport default Mixed;\nexport function create() {\n return new Mixed();\n} // XXX: this is using the Base schema so that `addMethod(mixed)` works as a base class\n\ncreate.prototype = Mixed.prototype;","const isAbsent = value => value == null;\n\nexport default isAbsent;","import BaseSchema from './schema';\nimport { boolean as locale } from './locale';\nimport isAbsent from './util/isAbsent';\nexport function create() {\n return new BooleanSchema();\n}\nexport default class BooleanSchema extends BaseSchema {\n constructor() {\n super({\n type: 'boolean'\n });\n this.withMutation(() => {\n this.transform(function (value) {\n if (!this.isType(value)) {\n if (/^(true|1)$/i.test(String(value))) return true;\n if (/^(false|0)$/i.test(String(value))) return false;\n }\n\n return value;\n });\n });\n }\n\n _typeCheck(v) {\n if (v instanceof Boolean) v = v.valueOf();\n return typeof v === 'boolean';\n }\n\n isTrue(message = locale.isValue) {\n return this.test({\n message,\n name: 'is-value',\n exclusive: true,\n params: {\n value: 'true'\n },\n\n test(value) {\n return isAbsent(value) || value === true;\n }\n\n });\n }\n\n isFalse(message = locale.isValue) {\n return this.test({\n message,\n name: 'is-value',\n exclusive: true,\n params: {\n value: 'false'\n },\n\n test(value) {\n return isAbsent(value) || value === false;\n }\n\n });\n }\n\n}\ncreate.prototype = BooleanSchema.prototype;","import superPropBase from \"./superPropBase\";\nexport default function _get(target, property, receiver) {\n if (typeof Reflect !== \"undefined\" && Reflect.get) {\n _get = Reflect.get;\n } else {\n _get = function _get(target, property, receiver) {\n var base = superPropBase(target, property);\n if (!base) return;\n var desc = Object.getOwnPropertyDescriptor(base, property);\n\n if (desc.get) {\n return desc.get.call(receiver);\n }\n\n return desc.value;\n };\n }\n\n return _get(target, property, receiver || target);\n}","import getPrototypeOf from \"./getPrototypeOf\";\nexport default function _superPropBase(object, property) {\n while (!Object.prototype.hasOwnProperty.call(object, property)) {\n object = getPrototypeOf(object);\n if (object === null) break;\n }\n\n return object;\n}","import { string as locale } from './locale';\nimport isAbsent from './util/isAbsent';\nimport BaseSchema from './schema'; // eslint-disable-next-line\n\nlet rEmail = /^((([a-z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])+(\\.([a-z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(\\\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.)+(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))$/i; // eslint-disable-next-line\n\nlet rUrl = /^((https?|ftp):)?\\/\\/(((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:)*@)?(((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]))|((([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|\\d|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.)+(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])*([a-z]|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])))\\.?)(:\\d*)?)(\\/((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)+(\\/(([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)*)*)?)?(\\?((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)|[\\uE000-\\uF8FF]|\\/|\\?)*)?(\\#((([a-z]|\\d|-|\\.|_|~|[\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF])|(%[\\da-f]{2})|[!\\$&'\\(\\)\\*\\+,;=]|:|@)|\\/|\\?)*)?$/i; // eslint-disable-next-line\n\nlet rUUID = /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;\n\nlet isTrimmed = value => isAbsent(value) || value === value.trim();\n\nlet objStringTag = {}.toString();\nexport function create() {\n return new StringSchema();\n}\nexport default class StringSchema extends BaseSchema {\n constructor() {\n super({\n type: 'string'\n });\n this.withMutation(() => {\n this.transform(function (value) {\n if (this.isType(value)) return value;\n if (Array.isArray(value)) return value;\n const strValue = value != null && value.toString ? value.toString() : value;\n if (strValue === objStringTag) return value;\n return strValue;\n });\n });\n }\n\n _typeCheck(value) {\n if (value instanceof String) value = value.valueOf();\n return typeof value === 'string';\n }\n\n _isPresent(value) {\n return super._isPresent(value) && !!value.length;\n }\n\n length(length, message = locale.length) {\n return this.test({\n message,\n name: 'length',\n exclusive: true,\n params: {\n length\n },\n\n test(value) {\n return isAbsent(value) || value.length === this.resolve(length);\n }\n\n });\n }\n\n min(min, message = locale.min) {\n return this.test({\n message,\n name: 'min',\n exclusive: true,\n params: {\n min\n },\n\n test(value) {\n return isAbsent(value) || value.length >= this.resolve(min);\n }\n\n });\n }\n\n max(max, message = locale.max) {\n return this.test({\n name: 'max',\n exclusive: true,\n message,\n params: {\n max\n },\n\n test(value) {\n return isAbsent(value) || value.length <= this.resolve(max);\n }\n\n });\n }\n\n matches(regex, options) {\n let excludeEmptyString = false;\n let message;\n let name;\n\n if (options) {\n if (typeof options === 'object') {\n ({\n excludeEmptyString = false,\n message,\n name\n } = options);\n } else {\n message = options;\n }\n }\n\n return this.test({\n name: name || 'matches',\n message: message || locale.matches,\n params: {\n regex\n },\n test: value => isAbsent(value) || value === '' && excludeEmptyString || value.search(regex) !== -1\n });\n }\n\n email(message = locale.email) {\n return this.matches(rEmail, {\n name: 'email',\n message,\n excludeEmptyString: true\n });\n }\n\n url(message = locale.url) {\n return this.matches(rUrl, {\n name: 'url',\n message,\n excludeEmptyString: true\n });\n }\n\n uuid(message = locale.uuid) {\n return this.matches(rUUID, {\n name: 'uuid',\n message,\n excludeEmptyString: false\n });\n } //-- transforms --\n\n\n ensure() {\n return this.default('').transform(val => val === null ? '' : val);\n }\n\n trim(message = locale.trim) {\n return this.transform(val => val != null ? val.trim() : val).test({\n message,\n name: 'trim',\n test: isTrimmed\n });\n }\n\n lowercase(message = locale.lowercase) {\n return this.transform(value => !isAbsent(value) ? value.toLowerCase() : value).test({\n message,\n name: 'string_case',\n exclusive: true,\n test: value => isAbsent(value) || value === value.toLowerCase()\n });\n }\n\n uppercase(message = locale.uppercase) {\n return this.transform(value => !isAbsent(value) ? value.toUpperCase() : value).test({\n message,\n name: 'string_case',\n exclusive: true,\n test: value => isAbsent(value) || value === value.toUpperCase()\n });\n }\n\n}\ncreate.prototype = StringSchema.prototype; //\n// String Interfaces\n//","import { number as locale } from './locale';\nimport isAbsent from './util/isAbsent';\nimport BaseSchema from './schema';\n\nlet isNaN = value => value != +value;\n\nexport function create() {\n return new NumberSchema();\n}\nexport default class NumberSchema extends BaseSchema {\n constructor() {\n super({\n type: 'number'\n });\n this.withMutation(() => {\n this.transform(function (value) {\n let parsed = value;\n\n if (typeof parsed === 'string') {\n parsed = parsed.replace(/\\s/g, '');\n if (parsed === '') return NaN; // don't use parseFloat to avoid positives on alpha-numeric strings\n\n parsed = +parsed;\n }\n\n if (this.isType(parsed)) return parsed;\n return parseFloat(parsed);\n });\n });\n }\n\n _typeCheck(value) {\n if (value instanceof Number) value = value.valueOf();\n return typeof value === 'number' && !isNaN(value);\n }\n\n min(min, message = locale.min) {\n return this.test({\n message,\n name: 'min',\n exclusive: true,\n params: {\n min\n },\n\n test(value) {\n return isAbsent(value) || value >= this.resolve(min);\n }\n\n });\n }\n\n max(max, message = locale.max) {\n return this.test({\n message,\n name: 'max',\n exclusive: true,\n params: {\n max\n },\n\n test(value) {\n return isAbsent(value) || value <= this.resolve(max);\n }\n\n });\n }\n\n lessThan(less, message = locale.lessThan) {\n return this.test({\n message,\n name: 'max',\n exclusive: true,\n params: {\n less\n },\n\n test(value) {\n return isAbsent(value) || value < this.resolve(less);\n }\n\n });\n }\n\n moreThan(more, message = locale.moreThan) {\n return this.test({\n message,\n name: 'min',\n exclusive: true,\n params: {\n more\n },\n\n test(value) {\n return isAbsent(value) || value > this.resolve(more);\n }\n\n });\n }\n\n positive(msg = locale.positive) {\n return this.moreThan(0, msg);\n }\n\n negative(msg = locale.negative) {\n return this.lessThan(0, msg);\n }\n\n integer(message = locale.integer) {\n return this.test({\n name: 'integer',\n message,\n test: val => isAbsent(val) || Number.isInteger(val)\n });\n }\n\n truncate() {\n return this.transform(value => !isAbsent(value) ? value | 0 : value);\n }\n\n round(method) {\n var _method;\n\n let avail = ['ceil', 'floor', 'round', 'trunc'];\n method = ((_method = method) == null ? void 0 : _method.toLowerCase()) || 'round'; // this exists for symemtry with the new Math.trunc\n\n if (method === 'trunc') return this.truncate();\n if (avail.indexOf(method.toLowerCase()) === -1) throw new TypeError('Only valid options for round() are: ' + avail.join(', '));\n return this.transform(value => !isAbsent(value) ? Math[method](value) : value);\n }\n\n}\ncreate.prototype = NumberSchema.prototype; //\n// Number Interfaces\n//","/* eslint-disable */\n\n/**\n *\n * Date.parse with progressive enhancement for ISO 8601 \n * NON-CONFORMANT EDITION.\n * © 2011 Colin Snover \n * Released under MIT license.\n */\n// 1 YYYY 2 MM 3 DD 4 HH 5 mm 6 ss 7 msec 8 Z 9 ± 10 tzHH 11 tzmm\nvar isoReg = /^(\\d{4}|[+\\-]\\d{6})(?:-?(\\d{2})(?:-?(\\d{2}))?)?(?:[ T]?(\\d{2}):?(\\d{2})(?::?(\\d{2})(?:[,\\.](\\d{1,}))?)?(?:(Z)|([+\\-])(\\d{2})(?::?(\\d{2}))?)?)?$/;\nexport default function parseIsoDate(date) {\n var numericKeys = [1, 4, 5, 6, 7, 10, 11],\n minutesOffset = 0,\n timestamp,\n struct;\n\n if (struct = isoReg.exec(date)) {\n // avoid NaN timestamps caused by “undefined” values being passed to Date.UTC\n for (var i = 0, k; k = numericKeys[i]; ++i) struct[k] = +struct[k] || 0; // allow undefined days and months\n\n\n struct[2] = (+struct[2] || 1) - 1;\n struct[3] = +struct[3] || 1; // allow arbitrary sub-second precision beyond milliseconds\n\n struct[7] = struct[7] ? String(struct[7]).substr(0, 3) : 0; // timestamps without timezone identifiers should be considered local time\n\n if ((struct[8] === undefined || struct[8] === '') && (struct[9] === undefined || struct[9] === '')) timestamp = +new Date(struct[1], struct[2], struct[3], struct[4], struct[5], struct[6], struct[7]);else {\n if (struct[8] !== 'Z' && struct[9] !== undefined) {\n minutesOffset = struct[10] * 60 + struct[11];\n if (struct[9] === '+') minutesOffset = 0 - minutesOffset;\n }\n\n timestamp = Date.UTC(struct[1], struct[2], struct[3], struct[4], struct[5] + minutesOffset, struct[6], struct[7]);\n }\n } else timestamp = Date.parse ? Date.parse(date) : NaN;\n\n return timestamp;\n}","// @ts-ignore\nimport isoParse from './util/isodate';\nimport { date as locale } from './locale';\nimport isAbsent from './util/isAbsent';\nimport Ref from './Reference';\nimport BaseSchema from './schema';\nlet invalidDate = new Date('');\n\nlet isDate = obj => Object.prototype.toString.call(obj) === '[object Date]';\n\nexport function create() {\n return new DateSchema();\n}\nexport default class DateSchema extends BaseSchema {\n constructor() {\n super({\n type: 'date'\n });\n this.withMutation(() => {\n this.transform(function (value) {\n if (this.isType(value)) return value;\n value = isoParse(value); // 0 is a valid timestamp equivalent to 1970-01-01T00:00:00Z(unix epoch) or before.\n\n return !isNaN(value) ? new Date(value) : invalidDate;\n });\n });\n }\n\n _typeCheck(v) {\n return isDate(v) && !isNaN(v.getTime());\n }\n\n prepareParam(ref, name) {\n let param;\n\n if (!Ref.isRef(ref)) {\n let cast = this.cast(ref);\n if (!this._typeCheck(cast)) throw new TypeError(`\\`${name}\\` must be a Date or a value that can be \\`cast()\\` to a Date`);\n param = cast;\n } else {\n param = ref;\n }\n\n return param;\n }\n\n min(min, message = locale.min) {\n let limit = this.prepareParam(min, 'min');\n return this.test({\n message,\n name: 'min',\n exclusive: true,\n params: {\n min\n },\n\n test(value) {\n return isAbsent(value) || value >= this.resolve(limit);\n }\n\n });\n }\n\n max(max, message = locale.max) {\n let limit = this.prepareParam(max, 'max');\n return this.test({\n message,\n name: 'max',\n exclusive: true,\n params: {\n max\n },\n\n test(value) {\n return isAbsent(value) || value <= this.resolve(limit);\n }\n\n });\n }\n\n}\nDateSchema.INVALID_DATE = invalidDate;\ncreate.prototype = DateSchema.prototype;\ncreate.INVALID_DATE = invalidDate;","import has from 'lodash/has'; // @ts-expect-error\n\nimport toposort from 'toposort';\nimport { split } from 'property-expr';\nimport Ref from '../Reference';\nimport isSchema from './isSchema';\nexport default function sortFields(fields, excludedEdges = []) {\n let edges = [];\n let nodes = new Set();\n let excludes = new Set(excludedEdges.map(([a, b]) => `${a}-${b}`));\n\n function addNode(depPath, key) {\n let node = split(depPath)[0];\n nodes.add(node);\n if (!excludes.has(`${key}-${node}`)) edges.push([key, node]);\n }\n\n for (const key in fields) if (has(fields, key)) {\n let value = fields[key];\n nodes.add(key);\n if (Ref.isRef(value) && value.isSibling) addNode(value.path, key);else if (isSchema(value) && 'deps' in value) value.deps.forEach(path => addNode(path, key));\n }\n\n return toposort.array(Array.from(nodes), edges).reverse();\n}","function findIndex(arr, err) {\n let idx = Infinity;\n arr.some((key, ii) => {\n var _err$path;\n\n if (((_err$path = err.path) == null ? void 0 : _err$path.indexOf(key)) !== -1) {\n idx = ii;\n return true;\n }\n });\n return idx;\n}\n\nexport default function sortByKeyOrder(keys) {\n return (a, b) => {\n return findIndex(keys, a) - findIndex(keys, b);\n };\n}","function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nimport has from 'lodash/has';\nimport snakeCase from 'lodash/snakeCase';\nimport camelCase from 'lodash/camelCase';\nimport mapKeys from 'lodash/mapKeys';\nimport mapValues from 'lodash/mapValues';\nimport { getter } from 'property-expr';\nimport { object as locale } from './locale';\nimport sortFields from './util/sortFields';\nimport sortByKeyOrder from './util/sortByKeyOrder';\nimport runTests from './util/runTests';\nimport ValidationError from './ValidationError';\nimport BaseSchema from './schema';\n\nlet isObject = obj => Object.prototype.toString.call(obj) === '[object Object]';\n\nfunction unknown(ctx, value) {\n let known = Object.keys(ctx.fields);\n return Object.keys(value).filter(key => known.indexOf(key) === -1);\n}\n\nconst defaultSort = sortByKeyOrder([]);\nexport default class ObjectSchema extends BaseSchema {\n constructor(spec) {\n super({\n type: 'object'\n });\n this.fields = Object.create(null);\n this._sortErrors = defaultSort;\n this._nodes = [];\n this._excludedEdges = [];\n this.withMutation(() => {\n this.transform(function coerce(value) {\n if (typeof value === 'string') {\n try {\n value = JSON.parse(value);\n } catch (err) {\n value = null;\n }\n }\n\n if (this.isType(value)) return value;\n return null;\n });\n\n if (spec) {\n this.shape(spec);\n }\n });\n }\n\n _typeCheck(value) {\n return isObject(value) || typeof value === 'function';\n }\n\n _cast(_value, options = {}) {\n var _options$stripUnknown;\n\n let value = super._cast(_value, options); //should ignore nulls here\n\n\n if (value === undefined) return this.getDefault();\n if (!this._typeCheck(value)) return value;\n let fields = this.fields;\n let strip = (_options$stripUnknown = options.stripUnknown) != null ? _options$stripUnknown : this.spec.noUnknown;\n\n let props = this._nodes.concat(Object.keys(value).filter(v => this._nodes.indexOf(v) === -1));\n\n let intermediateValue = {}; // is filled during the transform below\n\n let innerOptions = _extends({}, options, {\n parent: intermediateValue,\n __validating: options.__validating || false\n });\n\n let isChanged = false;\n\n for (const prop of props) {\n let field = fields[prop];\n let exists = has(value, prop);\n\n if (field) {\n let fieldValue;\n let inputValue = value[prop]; // safe to mutate since this is fired in sequence\n\n innerOptions.path = (options.path ? `${options.path}.` : '') + prop; // innerOptions.value = value[prop];\n\n field = field.resolve({\n value: inputValue,\n context: options.context,\n parent: intermediateValue\n });\n let fieldSpec = 'spec' in field ? field.spec : undefined;\n let strict = fieldSpec == null ? void 0 : fieldSpec.strict;\n\n if (fieldSpec == null ? void 0 : fieldSpec.strip) {\n isChanged = isChanged || prop in value;\n continue;\n }\n\n fieldValue = !options.__validating || !strict ? // TODO: use _cast, this is double resolving\n field.cast(value[prop], innerOptions) : value[prop];\n\n if (fieldValue !== undefined) {\n intermediateValue[prop] = fieldValue;\n }\n } else if (exists && !strip) {\n intermediateValue[prop] = value[prop];\n }\n\n if (intermediateValue[prop] !== value[prop]) {\n isChanged = true;\n }\n }\n\n return isChanged ? intermediateValue : value;\n }\n\n _validate(_value, opts = {}, callback) {\n let errors = [];\n let {\n sync,\n from = [],\n originalValue = _value,\n abortEarly = this.spec.abortEarly,\n recursive = this.spec.recursive\n } = opts;\n from = [{\n schema: this,\n value: originalValue\n }, ...from]; // this flag is needed for handling `strict` correctly in the context of\n // validation vs just casting. e.g strict() on a field is only used when validating\n\n opts.__validating = true;\n opts.originalValue = originalValue;\n opts.from = from;\n\n super._validate(_value, opts, (err, value) => {\n if (err) {\n if (!ValidationError.isError(err) || abortEarly) {\n return void callback(err, value);\n }\n\n errors.push(err);\n }\n\n if (!recursive || !isObject(value)) {\n callback(errors[0] || null, value);\n return;\n }\n\n originalValue = originalValue || value;\n\n let tests = this._nodes.map(key => (_, cb) => {\n let path = key.indexOf('.') === -1 ? (opts.path ? `${opts.path}.` : '') + key : `${opts.path || ''}[\"${key}\"]`;\n let field = this.fields[key];\n\n if (field && 'validate' in field) {\n field.validate(value[key], _extends({}, opts, {\n // @ts-ignore\n path,\n from,\n // inner fields are always strict:\n // 1. this isn't strict so the casting will also have cast inner values\n // 2. this is strict in which case the nested values weren't cast either\n strict: true,\n parent: value,\n originalValue: originalValue[key]\n }), cb);\n return;\n }\n\n cb(null);\n });\n\n runTests({\n sync,\n tests,\n value,\n errors,\n endEarly: abortEarly,\n sort: this._sortErrors,\n path: opts.path\n }, callback);\n });\n }\n\n clone(spec) {\n const next = super.clone(spec);\n next.fields = _extends({}, this.fields);\n next._nodes = this._nodes;\n next._excludedEdges = this._excludedEdges;\n next._sortErrors = this._sortErrors;\n return next;\n }\n\n concat(schema) {\n let next = super.concat(schema);\n let nextFields = next.fields;\n\n for (let [field, schemaOrRef] of Object.entries(this.fields)) {\n const target = nextFields[field];\n\n if (target === undefined) {\n nextFields[field] = schemaOrRef;\n } else if (target instanceof BaseSchema && schemaOrRef instanceof BaseSchema) {\n nextFields[field] = schemaOrRef.concat(target);\n }\n }\n\n return next.withMutation(() => next.shape(nextFields, this._excludedEdges));\n }\n\n getDefaultFromShape() {\n let dft = {};\n\n this._nodes.forEach(key => {\n const field = this.fields[key];\n dft[key] = 'default' in field ? field.getDefault() : undefined;\n });\n\n return dft;\n }\n\n _getDefault() {\n if ('default' in this.spec) {\n return super._getDefault();\n } // if there is no default set invent one\n\n\n if (!this._nodes.length) {\n return undefined;\n }\n\n return this.getDefaultFromShape();\n }\n\n shape(additions, excludes = []) {\n let next = this.clone();\n let fields = Object.assign(next.fields, additions);\n next.fields = fields;\n next._sortErrors = sortByKeyOrder(Object.keys(fields));\n\n if (excludes.length) {\n // this is a convenience for when users only supply a single pair\n if (!Array.isArray(excludes[0])) excludes = [excludes];\n next._excludedEdges = [...next._excludedEdges, ...excludes];\n }\n\n next._nodes = sortFields(fields, next._excludedEdges);\n return next;\n }\n\n pick(keys) {\n const picked = {};\n\n for (const key of keys) {\n if (this.fields[key]) picked[key] = this.fields[key];\n }\n\n return this.clone().withMutation(next => {\n next.fields = {};\n return next.shape(picked);\n });\n }\n\n omit(keys) {\n const next = this.clone();\n const fields = next.fields;\n next.fields = {};\n\n for (const key of keys) {\n delete fields[key];\n }\n\n return next.withMutation(() => next.shape(fields));\n }\n\n from(from, to, alias) {\n let fromGetter = getter(from, true);\n return this.transform(obj => {\n if (obj == null) return obj;\n let newObj = obj;\n\n if (has(obj, from)) {\n newObj = _extends({}, obj);\n if (!alias) delete newObj[from];\n newObj[to] = fromGetter(obj);\n }\n\n return newObj;\n });\n }\n\n noUnknown(noAllow = true, message = locale.noUnknown) {\n if (typeof noAllow === 'string') {\n message = noAllow;\n noAllow = true;\n }\n\n let next = this.test({\n name: 'noUnknown',\n exclusive: true,\n message: message,\n\n test(value) {\n if (value == null) return true;\n const unknownKeys = unknown(this.schema, value);\n return !noAllow || unknownKeys.length === 0 || this.createError({\n params: {\n unknown: unknownKeys.join(', ')\n }\n });\n }\n\n });\n next.spec.noUnknown = noAllow;\n return next;\n }\n\n unknown(allow = true, message = locale.noUnknown) {\n return this.noUnknown(!allow, message);\n }\n\n transformKeys(fn) {\n return this.transform(obj => obj && mapKeys(obj, (_, key) => fn(key)));\n }\n\n camelCase() {\n return this.transformKeys(camelCase);\n }\n\n snakeCase() {\n return this.transformKeys(snakeCase);\n }\n\n constantCase() {\n return this.transformKeys(key => snakeCase(key).toUpperCase());\n }\n\n describe() {\n let base = super.describe();\n base.fields = mapValues(this.fields, value => value.describe());\n return base;\n }\n\n}\nexport function create(spec) {\n return new ObjectSchema(spec);\n}\ncreate.prototype = ObjectSchema.prototype;","function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nimport isAbsent from './util/isAbsent';\nimport isSchema from './util/isSchema';\nimport printValue from './util/printValue';\nimport { array as locale } from './locale';\nimport runTests from './util/runTests';\nimport ValidationError from './ValidationError';\nimport BaseSchema from './schema';\nexport function create(type) {\n return new ArraySchema(type);\n}\nexport default class ArraySchema extends BaseSchema {\n constructor(type) {\n super({\n type: 'array'\n }); // `undefined` specifically means uninitialized, as opposed to\n // \"no subtype\"\n\n this.innerType = void 0;\n this.innerType = type;\n this.withMutation(() => {\n this.transform(function (values) {\n if (typeof values === 'string') try {\n values = JSON.parse(values);\n } catch (err) {\n values = null;\n }\n return this.isType(values) ? values : null;\n });\n });\n }\n\n _typeCheck(v) {\n return Array.isArray(v);\n }\n\n get _subType() {\n return this.innerType;\n }\n\n _cast(_value, _opts) {\n const value = super._cast(_value, _opts); //should ignore nulls here\n\n\n if (!this._typeCheck(value) || !this.innerType) return value;\n let isChanged = false;\n const castArray = value.map((v, idx) => {\n const castElement = this.innerType.cast(v, _extends({}, _opts, {\n path: `${_opts.path || ''}[${idx}]`\n }));\n\n if (castElement !== v) {\n isChanged = true;\n }\n\n return castElement;\n });\n return isChanged ? castArray : value;\n }\n\n _validate(_value, options = {}, callback) {\n var _options$abortEarly, _options$recursive;\n\n let errors = [];\n let sync = options.sync;\n let path = options.path;\n let innerType = this.innerType;\n let endEarly = (_options$abortEarly = options.abortEarly) != null ? _options$abortEarly : this.spec.abortEarly;\n let recursive = (_options$recursive = options.recursive) != null ? _options$recursive : this.spec.recursive;\n let originalValue = options.originalValue != null ? options.originalValue : _value;\n\n super._validate(_value, options, (err, value) => {\n if (err) {\n if (!ValidationError.isError(err) || endEarly) {\n return void callback(err, value);\n }\n\n errors.push(err);\n }\n\n if (!recursive || !innerType || !this._typeCheck(value)) {\n callback(errors[0] || null, value);\n return;\n }\n\n originalValue = originalValue || value; // #950 Ensure that sparse array empty slots are validated\n\n let tests = new Array(value.length);\n\n for (let idx = 0; idx < value.length; idx++) {\n let item = value[idx];\n let path = `${options.path || ''}[${idx}]`; // object._validate note for isStrict explanation\n\n let innerOptions = _extends({}, options, {\n path,\n strict: true,\n parent: value,\n index: idx,\n originalValue: originalValue[idx]\n });\n\n tests[idx] = (_, cb) => innerType.validate(item, innerOptions, cb);\n }\n\n runTests({\n sync,\n path,\n value,\n errors,\n endEarly,\n tests\n }, callback);\n });\n }\n\n clone(spec) {\n const next = super.clone(spec);\n next.innerType = this.innerType;\n return next;\n }\n\n concat(schema) {\n let next = super.concat(schema);\n next.innerType = this.innerType;\n if (schema.innerType) next.innerType = next.innerType ? // @ts-expect-error Lazy doesn't have concat()\n next.innerType.concat(schema.innerType) : schema.innerType;\n return next;\n }\n\n of(schema) {\n // FIXME: this should return a new instance of array without the default to be\n let next = this.clone();\n if (!isSchema(schema)) throw new TypeError('`array.of()` sub-schema must be a valid yup schema not: ' + printValue(schema)); // FIXME(ts):\n\n next.innerType = schema;\n return next;\n }\n\n length(length, message = locale.length) {\n return this.test({\n message,\n name: 'length',\n exclusive: true,\n params: {\n length\n },\n\n test(value) {\n return isAbsent(value) || value.length === this.resolve(length);\n }\n\n });\n }\n\n min(min, message) {\n message = message || locale.min;\n return this.test({\n message,\n name: 'min',\n exclusive: true,\n params: {\n min\n },\n\n // FIXME(ts): Array\n test(value) {\n return isAbsent(value) || value.length >= this.resolve(min);\n }\n\n });\n }\n\n max(max, message) {\n message = message || locale.max;\n return this.test({\n message,\n name: 'max',\n exclusive: true,\n params: {\n max\n },\n\n test(value) {\n return isAbsent(value) || value.length <= this.resolve(max);\n }\n\n });\n }\n\n ensure() {\n return this.default(() => []).transform((val, original) => {\n // We don't want to return `null` for nullable schema\n if (this._typeCheck(val)) return val;\n return original == null ? [] : [].concat(original);\n });\n }\n\n compact(rejector) {\n let reject = !rejector ? v => !!v : (v, i, a) => !rejector(v, i, a);\n return this.transform(values => values != null ? values.filter(reject) : values);\n }\n\n describe() {\n let base = super.describe();\n if (this.innerType) base.innerType = this.innerType.describe();\n return base;\n }\n\n nullable(isNullable = true) {\n return super.nullable(isNullable);\n }\n\n defined() {\n return super.defined();\n }\n\n required(msg) {\n return super.required(msg);\n }\n\n}\ncreate.prototype = ArraySchema.prototype; //\n// Interfaces\n//","import { FieldElement } from '../types';\n\nexport default (element: FieldElement): element is HTMLInputElement =>\n element.type === 'checkbox';\n","export default (value: unknown): value is Date => value instanceof Date;\n","export default (value: unknown): value is null | undefined => value == null;\n","import isDateObject from './isDateObject';\nimport isNullOrUndefined from './isNullOrUndefined';\n\nexport const isObjectType = (value: unknown) => typeof value === 'object';\n\nexport default (value: unknown): value is T =>\n !isNullOrUndefined(value) &&\n !Array.isArray(value) &&\n isObjectType(value) &&\n !isDateObject(value);\n","import isCheckBoxInput from '../utils/isCheckBoxInput';\nimport isObject from '../utils/isObject';\n\ntype Event = { target: any };\n\nexport default (event: unknown) =>\n isObject(event) && (event as Event).target\n ? isCheckBoxInput((event as Event).target)\n ? (event as Event).target.checked\n : (event as Event).target.value\n : event;\n","import { InternalFieldName } from '../types';\n\nimport getNodeParentName from './getNodeParentName';\n\nexport default (names: Set, name: InternalFieldName) =>\n [...names].some((current) => getNodeParentName(name) === current);\n","export default (name: string) => name.substring(0, name.search(/.\\d/)) || name;\n","export default (value: TValue[]) => value.filter(Boolean);\n","export default (val: unknown): val is undefined => val === undefined;\n","import compact from './compact';\nimport isNullOrUndefined from './isNullOrUndefined';\nimport isObject from './isObject';\nimport isUndefined from './isUndefined';\n\nexport default (obj: T, path: string, defaultValue?: unknown): any => {\n if (!path || !isObject(obj)) {\n return defaultValue;\n }\n\n const result = compact(path.split(/[,[\\].]+?/)).reduce(\n (result, key) =>\n isNullOrUndefined(result) ? result : result[key as keyof {}],\n obj,\n );\n\n return isUndefined(result) || result === obj\n ? isUndefined(obj[path as keyof T])\n ? defaultValue\n : obj[path as keyof T]\n : result;\n};\n","import { ValidationMode } from './types';\n\nexport const EVENTS = {\n BLUR: 'blur',\n CHANGE: 'change',\n};\n\nexport const VALIDATION_MODE: ValidationMode = {\n onBlur: 'onBlur',\n onChange: 'onChange',\n onSubmit: 'onSubmit',\n onTouched: 'onTouched',\n all: 'all',\n};\n\nexport const INPUT_VALIDATION_RULES = {\n max: 'max',\n min: 'min',\n maxLength: 'maxLength',\n minLength: 'minLength',\n pattern: 'pattern',\n required: 'required',\n validate: 'validate',\n};\n","export default >(\n source: T,\n key: Key,\n): Omit => {\n const copy = { ...source };\n delete copy[key];\n\n return copy;\n};\n","import React from 'react';\n\nimport omit from './utils/omit';\nimport { FieldValues, FormProviderProps, UseFormReturn } from './types';\n\nconst HookFormContext = React.createContext(null);\n\nexport const useFormContext = <\n TFieldValues extends FieldValues,\n>(): UseFormReturn =>\n React.useContext(HookFormContext) as unknown as UseFormReturn;\n\nexport const FormProvider = <\n TFieldValues extends FieldValues,\n TContext extends object = object,\n>(\n props: FormProviderProps,\n) => (\n \n {props.children}\n \n);\n","import { VALIDATION_MODE } from '../constants';\nimport { FormState, FormStateProxy, ReadFormState } from '../types';\n\nexport default (\n formState: FormState,\n _proxyFormState: ReadFormState,\n localProxyFormState?: ReadFormState,\n isRoot = true,\n) => {\n function createGetter(prop: keyof FormStateProxy) {\n return () => {\n if (prop in formState) {\n if (_proxyFormState[prop] !== VALIDATION_MODE.all) {\n _proxyFormState[prop] = !isRoot || VALIDATION_MODE.all;\n }\n localProxyFormState && (localProxyFormState[prop] = true);\n return formState[prop];\n }\n return undefined;\n };\n }\n\n const result = {} as any as typeof formState;\n for (const key in formState) {\n Object.defineProperty(result, key, {\n get: createGetter(key as keyof FormStateProxy),\n });\n }\n\n return result;\n};\n","import { EmptyObject } from '../types';\n\nimport isObject from './isObject';\n\nexport default (value: unknown): value is EmptyObject =>\n isObject(value) && !Object.keys(value).length;\n","import { VALIDATION_MODE } from '../constants';\nimport { ReadFormState } from '../types';\nimport isEmptyObject from '../utils/isEmptyObject';\nimport omit from '../utils/omit';\n\nexport default , K extends ReadFormState>(\n formStateData: T,\n _proxyFormState: K,\n isRoot?: boolean,\n) => {\n const formState = omit(formStateData, 'name');\n\n return (\n isEmptyObject(formState) ||\n Object.keys(formState).length >= Object.keys(_proxyFormState).length ||\n Object.keys(formState).find(\n (key) =>\n _proxyFormState[key as keyof ReadFormState] ===\n (!isRoot || VALIDATION_MODE.all),\n )\n );\n};\n","export default (value: T) => (Array.isArray(value) ? value : [value]);\n","import convertToArrayPayload from '../utils/convertToArrayPayload';\n\nexport default (\n name?: T,\n signalName?: string,\n exact?: boolean,\n) =>\n exact && signalName\n ? name === signalName\n : !name ||\n !signalName ||\n name === signalName ||\n convertToArrayPayload(name).some(\n (currentName) =>\n currentName &&\n (currentName.startsWith(signalName) ||\n signalName.startsWith(currentName)),\n );\n","import React from 'react';\n\nimport { Subject, Subscription } from './utils/createSubject';\n\ntype Props = {\n disabled?: boolean;\n subject: Subject;\n callback: (value: T) => void;\n};\n\nexport function useSubscribe(props: Props) {\n const _props = React.useRef(props);\n _props.current = props;\n\n React.useEffect(() => {\n const tearDown = (subscription: Subscription | false) => {\n if (subscription) {\n subscription.unsubscribe();\n }\n };\n\n const subscription =\n !props.disabled &&\n _props.current.subject.subscribe({\n next: _props.current.callback,\n });\n\n return () => tearDown(subscription);\n }, [props.disabled]);\n}\n","export default (value: unknown): value is string => typeof value === 'string';\n","import { FieldValues, InternalFieldName, Names } from '../types';\nimport get from '../utils/get';\nimport isString from '../utils/isString';\n\nexport default (\n names: string | string[] | undefined,\n _names: Names,\n formValues?: FieldValues,\n isGlobal?: boolean,\n) => {\n const isArray = Array.isArray(names);\n if (isString(names)) {\n isGlobal && _names.watch.add(names as InternalFieldName);\n return get(formValues, names as InternalFieldName);\n }\n\n if (isArray) {\n return names.map(\n (fieldName) => (\n isGlobal && _names.watch.add(fieldName as InternalFieldName),\n get(formValues, fieldName as InternalFieldName)\n ),\n );\n }\n\n isGlobal && (_names.watchAll = true);\n return formValues;\n};\n","export default (value: unknown): value is Function =>\n typeof value === 'function';\n","import isFunction from './isFunction';\n\nexport default (data: T): boolean => {\n for (const key in data) {\n if (isFunction(data[key])) {\n return true;\n }\n }\n return false;\n};\n","import React from 'react';\n\nimport getEventValue from './logic/getEventValue';\nimport isNameInFieldArray from './logic/isNameInFieldArray';\nimport get from './utils/get';\nimport { EVENTS } from './constants';\nimport {\n Field,\n FieldPath,\n FieldPathValue,\n FieldValues,\n InternalFieldName,\n UnpackNestedValue,\n UseControllerProps,\n UseControllerReturn,\n} from './types';\nimport { useFormContext } from './useFormContext';\nimport { useFormState } from './useFormState';\nimport { useWatch } from './useWatch';\n\nexport function useController<\n TFieldValues extends FieldValues = FieldValues,\n TName extends FieldPath = FieldPath,\n>(\n props: UseControllerProps,\n): UseControllerReturn {\n const methods = useFormContext();\n const { name, control = methods.control, shouldUnregister } = props;\n const isArrayField = isNameInFieldArray(control._names.array, name);\n const value = useWatch({\n control,\n name,\n defaultValue: get(\n control._formValues,\n name,\n get(control._defaultValues, name, props.defaultValue),\n ),\n exact: !isArrayField,\n }) as UnpackNestedValue>;\n const formState = useFormState({\n control,\n name,\n });\n\n const _registerProps = React.useRef(\n control.register(name, {\n ...props.rules,\n value,\n }),\n );\n\n React.useEffect(() => {\n const updateMounted = (name: InternalFieldName, value: boolean) => {\n const field: Field = get(control._fields, name);\n\n if (field) {\n field._f.mount = value;\n }\n };\n\n updateMounted(name, true);\n\n return () => {\n const _shouldUnregisterField =\n control._options.shouldUnregister || shouldUnregister;\n\n isArrayField\n ? _shouldUnregisterField && !control._stateFlags.action\n : _shouldUnregisterField\n ? control.unregister(name)\n : updateMounted(name, false);\n };\n }, [name, control, isArrayField, shouldUnregister]);\n\n return {\n field: {\n name,\n value,\n onChange: React.useCallback(\n (event) => {\n _registerProps.current.onChange({\n target: {\n value: getEventValue(event),\n name: name as InternalFieldName,\n },\n type: EVENTS.CHANGE,\n });\n },\n [name],\n ),\n onBlur: React.useCallback(() => {\n _registerProps.current.onBlur({\n target: {\n value: get(control._formValues, name),\n name: name as InternalFieldName,\n },\n type: EVENTS.BLUR,\n });\n }, [name, control]),\n ref: React.useCallback(\n (elm) => {\n const field = get(control._fields, name);\n\n if (elm && field && elm.focus) {\n field._f.ref = {\n focus: () => elm.focus(),\n setCustomValidity: (message: string) =>\n elm.setCustomValidity(message),\n reportValidity: () => elm.reportValidity(),\n };\n }\n },\n [name, control],\n ),\n },\n formState,\n fieldState: {\n invalid: !!get(formState.errors, name),\n isDirty: get(formState.dirtyFields, name),\n isTouched: get(formState.touchedFields, name),\n error: get(formState.errors, name),\n },\n };\n}\n","import React from 'react';\n\nimport generateWatchOutput from './logic/generateWatchOutput';\nimport shouldSubscribeByName from './logic/shouldSubscribeByName';\nimport isObject from './utils/isObject';\nimport isUndefined from './utils/isUndefined';\nimport objectHasFunction from './utils/objectHasFunction';\nimport {\n Control,\n DeepPartialSkipArrayKey,\n FieldPath,\n FieldPathValue,\n FieldPathValues,\n FieldValues,\n InternalFieldName,\n UnpackNestedValue,\n UseWatchProps,\n} from './types';\nimport { useFormContext } from './useFormContext';\nimport { useSubscribe } from './useSubscribe';\n\nexport function useWatch<\n TFieldValues extends FieldValues = FieldValues,\n>(props: {\n defaultValue?: UnpackNestedValue>;\n control?: Control;\n disabled?: boolean;\n exact?: boolean;\n}): UnpackNestedValue>;\nexport function useWatch<\n TFieldValues extends FieldValues = FieldValues,\n TFieldName extends FieldPath = FieldPath,\n>(props: {\n name: TFieldName;\n defaultValue?: FieldPathValue;\n control?: Control;\n disabled?: boolean;\n exact?: boolean;\n}): FieldPathValue;\nexport function useWatch<\n TFieldValues extends FieldValues = FieldValues,\n TFieldNames extends readonly FieldPath[] = readonly FieldPath[],\n>(props: {\n name: readonly [...TFieldNames];\n defaultValue?: UnpackNestedValue>;\n control?: Control;\n disabled?: boolean;\n exact?: boolean;\n}): FieldPathValues;\nexport function useWatch<\n TFieldValues extends FieldValues = FieldValues,\n TFieldNames extends FieldPath[] = FieldPath[],\n>(): FieldPathValues;\nexport function useWatch(props?: UseWatchProps) {\n const methods = useFormContext();\n const {\n control = methods.control,\n name,\n defaultValue,\n disabled,\n exact,\n } = props || {};\n const _name = React.useRef(name);\n\n _name.current = name;\n\n const callback = React.useCallback(\n (formState) => {\n if (\n shouldSubscribeByName(\n _name.current as InternalFieldName,\n formState.name,\n exact,\n )\n ) {\n const fieldValues = generateWatchOutput(\n _name.current as InternalFieldName | InternalFieldName[],\n control._names,\n formState.values || control._formValues,\n );\n\n updateValue(\n isUndefined(_name.current) ||\n (isObject(fieldValues) && !objectHasFunction(fieldValues))\n ? { ...fieldValues }\n : Array.isArray(fieldValues)\n ? [...fieldValues]\n : isUndefined(fieldValues)\n ? defaultValue\n : fieldValues,\n );\n }\n },\n [control, exact, defaultValue],\n );\n\n useSubscribe({\n disabled,\n subject: control._subjects.watch,\n callback,\n });\n\n const [value, updateValue] = React.useState(\n isUndefined(defaultValue)\n ? control._getWatch(name as InternalFieldName)\n : defaultValue,\n );\n\n React.useEffect(() => {\n control._removeUnmounted();\n });\n\n return value;\n}\n","import React from 'react';\n\nimport getProxyFormState from './logic/getProxyFormState';\nimport shouldRenderFormState from './logic/shouldRenderFormState';\nimport shouldSubscribeByName from './logic/shouldSubscribeByName';\nimport {\n FieldValues,\n InternalFieldName,\n UseFormStateProps,\n UseFormStateReturn,\n} from './types';\nimport { useFormContext } from './useFormContext';\nimport { useSubscribe } from './useSubscribe';\n\nfunction useFormState(\n props?: UseFormStateProps,\n): UseFormStateReturn {\n const methods = useFormContext();\n const { control = methods.control, disabled, name, exact } = props || {};\n const [formState, updateFormState] = React.useState(control._formState);\n const _localProxyFormState = React.useRef({\n isDirty: false,\n dirtyFields: false,\n touchedFields: false,\n isValidating: false,\n isValid: false,\n errors: false,\n });\n const _name = React.useRef(name);\n const _mounted = React.useRef(true);\n\n _name.current = name;\n\n const callback = React.useCallback(\n (value) =>\n _mounted.current &&\n shouldSubscribeByName(\n _name.current as InternalFieldName,\n value.name,\n exact,\n ) &&\n shouldRenderFormState(value, _localProxyFormState.current) &&\n updateFormState({\n ...control._formState,\n ...value,\n }),\n [control, exact],\n );\n\n useSubscribe({\n disabled,\n callback,\n subject: control._subjects.state,\n });\n\n React.useEffect(\n () => () => {\n _mounted.current = false;\n },\n [],\n );\n\n return getProxyFormState(\n formState,\n control._proxyFormState,\n _localProxyFormState.current,\n false,\n );\n}\n\nexport { useFormState };\n","import { ControllerProps, FieldPath, FieldValues } from './types';\nimport { useController } from './useController';\n\nconst Controller = <\n TFieldValues extends FieldValues = FieldValues,\n TName extends FieldPath = FieldPath,\n>(\n props: ControllerProps,\n) => props.render(useController(props));\n\nexport { Controller };\n","import {\n InternalFieldErrors,\n InternalFieldName,\n ValidateResult,\n} from '../types';\n\nexport default (\n name: InternalFieldName,\n validateAllFieldCriteria: boolean,\n errors: InternalFieldErrors,\n type: string,\n message: ValidateResult,\n) =>\n validateAllFieldCriteria\n ? {\n ...errors[name],\n types: {\n ...(errors[name] && errors[name]!.types ? errors[name]!.types : {}),\n [type]: message || true,\n },\n }\n : {};\n","export default (value: string) => /^\\w*$/.test(value);\n","import compact from './compact';\n\nexport default (input: string): string[] =>\n compact(input.replace(/[\"|']|\\]/g, '').split(/\\.|\\[/));\n","import { FieldValues } from '../types';\n\nimport isKey from './isKey';\nimport isObject from './isObject';\nimport stringToPath from './stringToPath';\n\nexport default function set(\n object: FieldValues,\n path: string,\n value?: unknown,\n) {\n let index = -1;\n const tempPath = isKey(path) ? [path] : stringToPath(path);\n const length = tempPath.length;\n const lastIndex = length - 1;\n\n while (++index < length) {\n const key = tempPath[index];\n let newValue = value;\n\n if (index !== lastIndex) {\n const objValue = object[key];\n newValue =\n isObject(objValue) || Array.isArray(objValue)\n ? objValue\n : !isNaN(+tempPath[index + 1])\n ? []\n : {};\n }\n object[key] = newValue;\n object = object[key];\n }\n return object;\n}\n","import { FieldRefs, InternalFieldName } from '../types';\nimport { get } from '../utils';\nimport isObject from '../utils/isObject';\nimport isUndefined from '../utils/isUndefined';\nimport omit from '../utils/omit';\n\nconst focusFieldBy = (\n fields: FieldRefs,\n callback: (name: string) => boolean,\n fieldsNames?: Set | InternalFieldName[],\n) => {\n for (const key of fieldsNames || Object.keys(fields)) {\n const field = get(fields, key);\n\n if (field) {\n const _f = field._f;\n const current = omit(field, '_f');\n\n if (_f && callback(_f.name)) {\n if (_f.ref.focus && isUndefined(_f.ref.focus())) {\n break;\n } else if (_f.refs) {\n _f.refs[0].focus();\n break;\n }\n } else if (isObject(current)) {\n focusFieldBy(current, callback);\n }\n }\n }\n};\n\nexport default focusFieldBy;\n","import { InternalFieldName, Names } from '../types';\n\nexport default (\n name: InternalFieldName,\n _names: Names,\n isBlurEvent?: boolean,\n) =>\n !isBlurEvent &&\n (_names.watchAll ||\n _names.watch.has(name) ||\n [..._names.watch].some(\n (watchName) =>\n name.startsWith(watchName) &&\n /^\\.\\w+/.test(name.slice(watchName.length)),\n ));\n","import isFunction from './isFunction';\nimport isObject from './isObject';\n\nexport default function cloneObject(data: T): T {\n let copy: any;\n const isArray = Array.isArray(data);\n\n if (data instanceof Date) {\n copy = new Date(data);\n } else if (data instanceof Set) {\n copy = new Set(data);\n } else if (isArray || isObject(data)) {\n copy = isArray ? [] : {};\n for (const key in data) {\n if (isFunction(data[key])) {\n copy = data;\n break;\n }\n copy[key] = cloneObject(data[key]);\n }\n } else {\n return data;\n }\n\n return copy;\n}\n","import { Noop } from '../types';\n\nexport type Observer = {\n next: (value: T) => void;\n};\n\nexport type Subscription = {\n unsubscribe: Noop;\n};\n\nexport type Subject = {\n readonly observers: Observer[];\n subscribe: (value: Observer) => Subscription;\n unsubscribe: Noop;\n} & Observer;\n\nexport default function createSubject(): Subject {\n let _observers: Observer[] = [];\n\n const next = (value: T) => {\n for (const observer of _observers) {\n observer.next(value);\n }\n };\n\n const subscribe = (observer: Observer): Subscription => {\n _observers.push(observer);\n return {\n unsubscribe: () => {\n _observers = _observers.filter((o) => o !== observer);\n },\n };\n };\n\n const unsubscribe = () => {\n _observers = [];\n };\n\n return {\n get observers() {\n return _observers;\n },\n next,\n subscribe,\n unsubscribe,\n };\n}\n","import { Primitive } from '../types';\n\nimport isNullOrUndefined from './isNullOrUndefined';\nimport { isObjectType } from './isObject';\n\nexport default (value: unknown): value is Primitive =>\n isNullOrUndefined(value) || !isObjectType(value);\n","import isObject from '../utils/isObject';\n\nimport isDateObject from './isDateObject';\nimport isPrimitive from './isPrimitive';\n\nexport default function deepEqual(object1: any, object2: any) {\n if (isPrimitive(object1) || isPrimitive(object2)) {\n return object1 === object2;\n }\n\n if (isDateObject(object1) && isDateObject(object2)) {\n return object1.getTime() === object2.getTime();\n }\n\n const keys1 = Object.keys(object1);\n const keys2 = Object.keys(object2);\n\n if (keys1.length !== keys2.length) {\n return false;\n }\n\n for (const key of keys1) {\n const val1 = object1[key];\n\n if (!keys2.includes(key)) {\n return false;\n }\n\n if (key !== 'ref') {\n const val2 = object2[key];\n\n if (\n (isDateObject(val1) && isDateObject(val2)) ||\n (isObject(val1) && isObject(val2)) ||\n (Array.isArray(val1) && Array.isArray(val2))\n ? !deepEqual(val1, val2)\n : val1 !== val2\n ) {\n return false;\n }\n }\n }\n\n return true;\n}\n","import { VALIDATION_MODE } from '../constants';\nimport { Mode } from '../types';\n\nexport default (\n mode?: Mode,\n): {\n isOnSubmit: boolean;\n isOnBlur: boolean;\n isOnChange: boolean;\n isOnAll: boolean;\n isOnTouch: boolean;\n} => ({\n isOnSubmit: !mode || mode === VALIDATION_MODE.onSubmit,\n isOnBlur: mode === VALIDATION_MODE.onBlur,\n isOnChange: mode === VALIDATION_MODE.onChange,\n isOnAll: mode === VALIDATION_MODE.all,\n isOnTouch: mode === VALIDATION_MODE.onTouched,\n});\n","export default (value: unknown): value is boolean => typeof value === 'boolean';\n","import { FieldElement } from '../types';\n\nexport default (element: FieldElement): element is HTMLInputElement =>\n element.type === 'file';\n","export default (value: unknown): value is HTMLElement =>\n value instanceof HTMLElement;\n","import { FieldElement } from '../types';\n\nexport default (element: FieldElement): element is HTMLSelectElement =>\n element.type === `select-multiple`;\n","import { FieldElement } from '../types';\n\nexport default (element: FieldElement): element is HTMLInputElement =>\n element.type === 'radio';\n","import { FieldElement } from '../types';\n\nimport isCheckBoxInput from './isCheckBoxInput';\nimport isRadioInput from './isRadioInput';\n\nexport default (ref: FieldElement): ref is HTMLInputElement =>\n isRadioInput(ref) || isCheckBoxInput(ref);\n","export default typeof window !== 'undefined' &&\n typeof window.HTMLElement !== 'undefined' &&\n typeof document !== 'undefined';\n","import { Ref } from '../types';\n\nimport isHTMLElement from './isHTMLElement';\n\nexport default (ref: Ref) => isHTMLElement(ref) && ref.isConnected;\n","import isBoolean from './isBoolean';\nimport isEmptyObject from './isEmptyObject';\nimport isKey from './isKey';\nimport isObject from './isObject';\nimport isUndefined from './isUndefined';\nimport stringToPath from './stringToPath';\n\nfunction baseGet(object: any, updatePath: (string | number)[]) {\n const length = updatePath.slice(0, -1).length;\n let index = 0;\n\n while (index < length) {\n object = isUndefined(object) ? index++ : object[updatePath[index++]];\n }\n\n return object;\n}\n\nexport default function unset(object: any, path: string) {\n const updatePath = isKey(path) ? [path] : stringToPath(path);\n const childObject =\n updatePath.length == 1 ? object : baseGet(object, updatePath);\n const key = updatePath[updatePath.length - 1];\n let previousObjRef;\n\n if (childObject) {\n delete childObject[key];\n }\n\n for (let k = 0; k < updatePath.slice(0, -1).length; k++) {\n let index = -1;\n let objectRef;\n const currentPaths = updatePath.slice(0, -(k + 1));\n const currentPathsLength = currentPaths.length - 1;\n\n if (k > 0) {\n previousObjRef = object;\n }\n\n while (++index < currentPaths.length) {\n const item = currentPaths[index];\n objectRef = objectRef ? objectRef[item] : object[item];\n\n if (\n currentPathsLength === index &&\n ((isObject(objectRef) && isEmptyObject(objectRef)) ||\n (Array.isArray(objectRef) &&\n !objectRef.filter(\n (data) =>\n (isObject(data) && !isEmptyObject(data)) || isBoolean(data),\n ).length))\n ) {\n previousObjRef ? delete previousObjRef[item] : delete object[item];\n }\n\n previousObjRef = objectRef;\n }\n }\n\n return object;\n}\n","import deepEqual from '../utils/deepEqual';\nimport isNullOrUndefined from '../utils/isNullOrUndefined';\nimport isObject from '../utils/isObject';\nimport isPrimitive from '../utils/isPrimitive';\nimport isUndefined from '../utils/isUndefined';\nimport objectHasFunction from '../utils/objectHasFunction';\n\nfunction markFieldsDirty(data: U, fields: Record = {}) {\n const isParentNodeArray = Array.isArray(data);\n\n if (isObject(data) || isParentNodeArray) {\n for (const key in data) {\n if (\n Array.isArray(data[key]) ||\n (isObject(data[key]) && !objectHasFunction(data[key]))\n ) {\n fields[key] = Array.isArray(data[key]) ? [] : {};\n markFieldsDirty(data[key], fields[key]);\n } else if (!isNullOrUndefined(data[key])) {\n fields[key] = true;\n }\n }\n }\n\n return fields;\n}\n\nfunction getDirtyFieldsFromDefaultValues(\n data: T,\n formValues: T,\n dirtyFieldsFromValues: any,\n) {\n const isParentNodeArray = Array.isArray(data);\n\n if (isObject(data) || isParentNodeArray) {\n for (const key in data) {\n if (\n Array.isArray(data[key]) ||\n (isObject(data[key]) && !objectHasFunction(data[key]))\n ) {\n if (\n isUndefined(formValues) ||\n isPrimitive(dirtyFieldsFromValues[key])\n ) {\n dirtyFieldsFromValues[key] = Array.isArray(data[key])\n ? markFieldsDirty(data[key], [])\n : { ...markFieldsDirty(data[key]) };\n } else {\n getDirtyFieldsFromDefaultValues(\n data[key],\n isNullOrUndefined(formValues) ? {} : formValues[key],\n dirtyFieldsFromValues[key],\n );\n }\n } else {\n dirtyFieldsFromValues[key] = !deepEqual(data[key], formValues[key]);\n }\n }\n }\n\n return dirtyFieldsFromValues;\n}\n\nexport default (defaultValues: T, formValues: T) =>\n getDirtyFieldsFromDefaultValues(\n defaultValues,\n formValues,\n markFieldsDirty(formValues),\n );\n","import isUndefined from '../utils/isUndefined';\n\ntype CheckboxFieldResult = {\n isValid: boolean;\n value: string | string[] | boolean | undefined;\n};\n\nconst defaultResult: CheckboxFieldResult = {\n value: false,\n isValid: false,\n};\n\nconst validResult = { value: true, isValid: true };\n\nexport default (options?: HTMLInputElement[]): CheckboxFieldResult => {\n if (Array.isArray(options)) {\n if (options.length > 1) {\n const values = options\n .filter((option) => option && option.checked && !option.disabled)\n .map((option) => option.value);\n return { value: values, isValid: !!values.length };\n }\n\n return options[0].checked && !options[0].disabled\n ? // @ts-expect-error expected to work in the browser\n options[0].attributes && !isUndefined(options[0].attributes.value)\n ? isUndefined(options[0].value) || options[0].value === ''\n ? validResult\n : { value: options[0].value, isValid: true }\n : validResult\n : defaultResult;\n }\n\n return defaultResult;\n};\n","import { Field, NativeFieldValue } from '../types';\nimport isString from '../utils/isString';\nimport isUndefined from '../utils/isUndefined';\n\nexport default (\n value: T,\n { valueAsNumber, valueAsDate, setValueAs }: Field['_f'],\n) =>\n isUndefined(value)\n ? value\n : valueAsNumber\n ? value === ''\n ? NaN\n : +value\n : valueAsDate && isString(value)\n ? new Date(value)\n : setValueAs\n ? setValueAs(value)\n : value;\n","type RadioFieldResult = {\n isValid: boolean;\n value: number | string | null;\n};\n\nconst defaultReturn: RadioFieldResult = {\n isValid: false,\n value: null,\n};\n\nexport default (options?: HTMLInputElement[]): RadioFieldResult =>\n Array.isArray(options)\n ? options.reduce(\n (previous, option): RadioFieldResult =>\n option && option.checked && !option.disabled\n ? {\n isValid: true,\n value: option.value,\n }\n : previous,\n defaultReturn,\n )\n : defaultReturn;\n","import { Field } from '../types';\nimport isCheckBox from '../utils/isCheckBoxInput';\nimport isFileInput from '../utils/isFileInput';\nimport isMultipleSelect from '../utils/isMultipleSelect';\nimport isRadioInput from '../utils/isRadioInput';\nimport isUndefined from '../utils/isUndefined';\n\nimport getCheckboxValue from './getCheckboxValue';\nimport getFieldValueAs from './getFieldValueAs';\nimport getRadioValue from './getRadioValue';\n\nexport default function getFieldValue(_f: Field['_f']) {\n const ref = _f.ref;\n\n if (_f.refs ? _f.refs.every((ref) => ref.disabled) : ref.disabled) {\n return;\n }\n\n if (isFileInput(ref)) {\n return ref.files;\n }\n\n if (isRadioInput(ref)) {\n return getRadioValue(_f.refs).value;\n }\n\n if (isMultipleSelect(ref)) {\n return [...ref.selectedOptions].map(({ value }) => value);\n }\n\n if (isCheckBox(ref)) {\n return getCheckboxValue(_f.refs).value;\n }\n\n return getFieldValueAs(isUndefined(ref.value) ? _f.ref.value : ref.value, _f);\n}\n","import {\n CriteriaMode,\n Field,\n FieldName,\n FieldRefs,\n InternalFieldName,\n} from '../types';\nimport { get } from '../utils';\nimport set from '../utils/set';\n\nexport default (\n fieldsNames: Set | InternalFieldName[],\n _fields: FieldRefs,\n criteriaMode?: CriteriaMode,\n shouldUseNativeValidation?: boolean | undefined,\n) => {\n const fields: Record = {};\n\n for (const name of fieldsNames) {\n const field: Field = get(_fields, name);\n\n field && set(fields, name, field._f);\n }\n\n return {\n criteriaMode,\n names: [...fieldsNames] as FieldName[],\n fields,\n shouldUseNativeValidation,\n };\n};\n","export default (value: unknown): value is RegExp => value instanceof RegExp;\n","import {\n ValidationRule,\n ValidationValue,\n ValidationValueMessage,\n} from '../types';\nimport isObject from '../utils/isObject';\nimport isRegex from '../utils/isRegex';\nimport isUndefined from '../utils/isUndefined';\n\nexport default (\n rule?: ValidationRule | ValidationValueMessage,\n) =>\n isUndefined(rule)\n ? undefined\n : isRegex(rule)\n ? rule.source\n : isObject(rule)\n ? isRegex(rule.value)\n ? rule.value.source\n : rule.value\n : rule;\n","import { Field } from '../types';\n\nexport default (options: Field['_f']) =>\n options.mount &&\n (options.required ||\n options.min ||\n options.max ||\n options.maxLength ||\n options.minLength ||\n options.pattern ||\n options.validate);\n","import { FieldError, FieldErrors, FieldValues } from '../types';\nimport get from '../utils/get';\nimport isKey from '../utils/isKey';\n\nexport default function schemaErrorLookup(\n errors: FieldErrors,\n _fields: FieldValues,\n name: string,\n): {\n error?: FieldError;\n name: string;\n} {\n const error = get(errors, name);\n\n if (error || isKey(name)) {\n return {\n error,\n name,\n };\n }\n\n const names = name.split('.');\n\n while (names.length) {\n const fieldName = names.join('.');\n const field = get(_fields, fieldName);\n const foundError = get(errors, fieldName);\n\n if (field && !Array.isArray(field) && name !== fieldName) {\n return { name };\n }\n\n if (foundError && foundError.type) {\n return {\n name: fieldName,\n error: foundError,\n };\n }\n\n names.pop();\n }\n\n return {\n name,\n };\n}\n","export default (\n isBlurEvent: boolean,\n isTouched: boolean,\n isSubmitted: boolean,\n reValidateMode: {\n isOnBlur: boolean;\n isOnChange: boolean;\n },\n mode: Partial<{\n isOnSubmit: boolean;\n isOnBlur: boolean;\n isOnChange: boolean;\n isOnTouch: boolean;\n isOnAll: boolean;\n }>,\n) => {\n if (mode.isOnAll) {\n return false;\n } else if (!isSubmitted && mode.isOnTouch) {\n return !(isTouched || isBlurEvent);\n } else if (isSubmitted ? reValidateMode.isOnBlur : mode.isOnBlur) {\n return !isBlurEvent;\n } else if (isSubmitted ? reValidateMode.isOnChange : mode.isOnChange) {\n return isBlurEvent;\n }\n return true;\n};\n","import compact from '../utils/compact';\nimport get from '../utils/get';\nimport unset from '../utils/unset';\n\nexport default (ref: T, name: string) =>\n !compact(get(ref, name)).length && unset(ref, name);\n","import React from 'react';\n\nimport { Message } from '../types';\nimport isString from '../utils/isString';\n\nexport default (value: unknown): value is Message =>\n isString(value) || React.isValidElement(value as JSX.Element);\n","import { FieldError, Ref, ValidateResult } from '../types';\nimport isBoolean from '../utils/isBoolean';\nimport isMessage from '../utils/isMessage';\n\nexport default function getValidateError(\n result: ValidateResult,\n ref: Ref,\n type = 'validate',\n): FieldError | void {\n if (\n isMessage(result) ||\n (Array.isArray(result) && result.every(isMessage)) ||\n (isBoolean(result) && !result)\n ) {\n return {\n type,\n message: isMessage(result) ? result : '',\n ref,\n };\n }\n}\n","import { ValidationRule } from '../types';\nimport isObject from '../utils/isObject';\nimport isRegex from '../utils/isRegex';\n\nexport default (validationData?: ValidationRule) =>\n isObject(validationData) && !isRegex(validationData)\n ? validationData\n : {\n value: validationData,\n message: '',\n };\n","import { INPUT_VALIDATION_RULES } from '../constants';\nimport {\n Field,\n FieldError,\n InternalFieldErrors,\n Message,\n NativeFieldValue,\n} from '../types';\nimport isBoolean from '../utils/isBoolean';\nimport isCheckBoxInput from '../utils/isCheckBoxInput';\nimport isEmptyObject from '../utils/isEmptyObject';\nimport isFileInput from '../utils/isFileInput';\nimport isFunction from '../utils/isFunction';\nimport isMessage from '../utils/isMessage';\nimport isNullOrUndefined from '../utils/isNullOrUndefined';\nimport isObject from '../utils/isObject';\nimport isRadioInput from '../utils/isRadioInput';\nimport isRegex from '../utils/isRegex';\nimport isString from '../utils/isString';\n\nimport appendErrors from './appendErrors';\nimport getCheckboxValue from './getCheckboxValue';\nimport getRadioValue from './getRadioValue';\nimport getValidateError from './getValidateError';\nimport getValueAndMessage from './getValueAndMessage';\n\nexport default async (\n field: Field,\n inputValue: T,\n validateAllFieldCriteria: boolean,\n shouldUseNativeValidation?: boolean,\n): Promise => {\n const {\n ref,\n refs,\n required,\n maxLength,\n minLength,\n min,\n max,\n pattern,\n validate,\n name,\n valueAsNumber,\n mount,\n disabled,\n } = field._f;\n if (!mount || disabled) {\n return {};\n }\n const inputRef: HTMLInputElement = refs ? refs[0] : (ref as HTMLInputElement);\n const setCustomValidity = (message?: string | boolean) => {\n if (shouldUseNativeValidation && inputRef.reportValidity) {\n inputRef.setCustomValidity(isBoolean(message) ? '' : message || ' ');\n inputRef.reportValidity();\n }\n };\n const error: InternalFieldErrors = {};\n const isRadio = isRadioInput(ref);\n const isCheckBox = isCheckBoxInput(ref);\n const isRadioOrCheckbox = isRadio || isCheckBox;\n const isEmpty =\n ((valueAsNumber || isFileInput(ref)) && !ref.value) ||\n inputValue === '' ||\n (Array.isArray(inputValue) && !inputValue.length);\n const appendErrorsCurry = appendErrors.bind(\n null,\n name,\n validateAllFieldCriteria,\n error,\n );\n const getMinMaxMessage = (\n exceedMax: boolean,\n maxLengthMessage: Message,\n minLengthMessage: Message,\n maxType = INPUT_VALIDATION_RULES.maxLength,\n minType = INPUT_VALIDATION_RULES.minLength,\n ) => {\n const message = exceedMax ? maxLengthMessage : minLengthMessage;\n error[name] = {\n type: exceedMax ? maxType : minType,\n message,\n ref,\n ...appendErrorsCurry(exceedMax ? maxType : minType, message),\n };\n };\n\n if (\n required &&\n ((!isRadioOrCheckbox && (isEmpty || isNullOrUndefined(inputValue))) ||\n (isBoolean(inputValue) && !inputValue) ||\n (isCheckBox && !getCheckboxValue(refs).isValid) ||\n (isRadio && !getRadioValue(refs).isValid))\n ) {\n const { value, message } = isMessage(required)\n ? { value: !!required, message: required }\n : getValueAndMessage(required);\n\n if (value) {\n error[name] = {\n type: INPUT_VALIDATION_RULES.required,\n message,\n ref: inputRef,\n ...appendErrorsCurry(INPUT_VALIDATION_RULES.required, message),\n };\n if (!validateAllFieldCriteria) {\n setCustomValidity(message);\n return error;\n }\n }\n }\n\n if (!isEmpty && (!isNullOrUndefined(min) || !isNullOrUndefined(max))) {\n let exceedMax;\n let exceedMin;\n const maxOutput = getValueAndMessage(max);\n const minOutput = getValueAndMessage(min);\n\n if (!isNaN(inputValue as number)) {\n const valueNumber =\n (ref as HTMLInputElement).valueAsNumber ||\n parseFloat(inputValue as string);\n if (!isNullOrUndefined(maxOutput.value)) {\n exceedMax = valueNumber > maxOutput.value;\n }\n if (!isNullOrUndefined(minOutput.value)) {\n exceedMin = valueNumber < minOutput.value;\n }\n } else {\n const valueDate =\n (ref as HTMLInputElement).valueAsDate || new Date(inputValue as string);\n if (isString(maxOutput.value)) {\n exceedMax = valueDate > new Date(maxOutput.value);\n }\n if (isString(minOutput.value)) {\n exceedMin = valueDate < new Date(minOutput.value);\n }\n }\n\n if (exceedMax || exceedMin) {\n getMinMaxMessage(\n !!exceedMax,\n maxOutput.message,\n minOutput.message,\n INPUT_VALIDATION_RULES.max,\n INPUT_VALIDATION_RULES.min,\n );\n if (!validateAllFieldCriteria) {\n setCustomValidity(error[name]!.message);\n return error;\n }\n }\n }\n\n if ((maxLength || minLength) && !isEmpty && isString(inputValue)) {\n const maxLengthOutput = getValueAndMessage(maxLength);\n const minLengthOutput = getValueAndMessage(minLength);\n const exceedMax =\n !isNullOrUndefined(maxLengthOutput.value) &&\n inputValue.length > maxLengthOutput.value;\n const exceedMin =\n !isNullOrUndefined(minLengthOutput.value) &&\n inputValue.length < minLengthOutput.value;\n\n if (exceedMax || exceedMin) {\n getMinMaxMessage(\n exceedMax,\n maxLengthOutput.message,\n minLengthOutput.message,\n );\n if (!validateAllFieldCriteria) {\n setCustomValidity(error[name]!.message);\n return error;\n }\n }\n }\n\n if (pattern && !isEmpty && isString(inputValue)) {\n const { value: patternValue, message } = getValueAndMessage(pattern);\n\n if (isRegex(patternValue) && !inputValue.match(patternValue)) {\n error[name] = {\n type: INPUT_VALIDATION_RULES.pattern,\n message,\n ref,\n ...appendErrorsCurry(INPUT_VALIDATION_RULES.pattern, message),\n };\n if (!validateAllFieldCriteria) {\n setCustomValidity(message);\n return error;\n }\n }\n }\n\n if (validate) {\n if (isFunction(validate)) {\n const result = await validate(inputValue);\n const validateError = getValidateError(result, inputRef);\n\n if (validateError) {\n error[name] = {\n ...validateError,\n ...appendErrorsCurry(\n INPUT_VALIDATION_RULES.validate,\n validateError.message,\n ),\n };\n if (!validateAllFieldCriteria) {\n setCustomValidity(validateError.message);\n return error;\n }\n }\n } else if (isObject(validate)) {\n let validationResult = {} as FieldError;\n\n for (const key in validate) {\n if (!isEmptyObject(validationResult) && !validateAllFieldCriteria) {\n break;\n }\n\n const validateError = getValidateError(\n await validate[key](inputValue),\n inputRef,\n key,\n );\n\n if (validateError) {\n validationResult = {\n ...validateError,\n ...appendErrorsCurry(key, validateError.message),\n };\n\n setCustomValidity(validateError.message);\n\n if (validateAllFieldCriteria) {\n error[name] = validationResult;\n }\n }\n }\n\n if (!isEmptyObject(validationResult)) {\n error[name] = {\n ref: inputRef,\n ...validationResult,\n };\n if (!validateAllFieldCriteria) {\n return error;\n }\n }\n }\n }\n\n setCustomValidity(true);\n return error;\n};\n","import { EVENTS, VALIDATION_MODE } from '../constants';\nimport {\n _UseFormGetFieldState,\n BatchFieldArrayUpdate,\n ChangeHandler,\n DeepPartial,\n DelayCallback,\n EventType,\n Field,\n FieldError,\n FieldErrors,\n FieldNamesMarkedBoolean,\n FieldPath,\n FieldRefs,\n FieldValues,\n FormState,\n GetIsDirty,\n InternalFieldName,\n Names,\n Path,\n Ref,\n ResolverResult,\n SetFieldValue,\n SetValueConfig,\n Subjects,\n UnpackNestedValue,\n UseFormClearErrors,\n UseFormGetValues,\n UseFormHandleSubmit,\n UseFormProps,\n UseFormRegister,\n UseFormReset,\n UseFormResetField,\n UseFormReturn,\n UseFormSetError,\n UseFormSetFocus,\n UseFormSetValue,\n UseFormTrigger,\n UseFormUnregister,\n UseFormWatch,\n WatchInternal,\n WatchObserver,\n} from '../types';\nimport cloneObject from '../utils/cloneObject';\nimport compact from '../utils/compact';\nimport convertToArrayPayload from '../utils/convertToArrayPayload';\nimport createSubject from '../utils/createSubject';\nimport deepEqual from '../utils/deepEqual';\nimport get from '../utils/get';\nimport getValidationModes from '../utils/getValidationModes';\nimport isBoolean from '../utils/isBoolean';\nimport isCheckBoxInput from '../utils/isCheckBoxInput';\nimport isDateObject from '../utils/isDateObject';\nimport isEmptyObject from '../utils/isEmptyObject';\nimport isFileInput from '../utils/isFileInput';\nimport isFunction from '../utils/isFunction';\nimport isHTMLElement from '../utils/isHTMLElement';\nimport isMultipleSelect from '../utils/isMultipleSelect';\nimport isNullOrUndefined from '../utils/isNullOrUndefined';\nimport isPrimitive from '../utils/isPrimitive';\nimport isRadioOrCheckbox from '../utils/isRadioOrCheckbox';\nimport isString from '../utils/isString';\nimport isUndefined from '../utils/isUndefined';\nimport isWeb from '../utils/isWeb';\nimport live from '../utils/live';\nimport omit from '../utils/omit';\nimport set from '../utils/set';\nimport unset from '../utils/unset';\n\nimport focusFieldBy from './focusFieldBy';\nimport generateWatchOutput from './generateWatchOutput';\nimport getDirtyFields from './getDirtyFields';\nimport getEventValue from './getEventValue';\nimport getFieldValue from './getFieldValue';\nimport getFieldValueAs from './getFieldValueAs';\nimport getResolverOptions from './getResolverOptions';\nimport getRuleValue from './getRuleValue';\nimport hasValidation from './hasValidation';\nimport isNameInFieldArray from './isNameInFieldArray';\nimport isWatched from './isWatched';\nimport schemaErrorLookup from './schemaErrorLookup';\nimport skipValidation from './skipValidation';\nimport unsetEmptyArray from './unsetEmptyArray';\nimport validateField from './validateField';\n\nconst defaultOptions = {\n mode: VALIDATION_MODE.onSubmit,\n reValidateMode: VALIDATION_MODE.onChange,\n shouldFocusError: true,\n} as const;\n\nexport function createFormControl<\n TFieldValues extends FieldValues = FieldValues,\n TContext extends object = object,\n>(\n props: UseFormProps = {},\n): Omit, 'formState'> {\n let _options = {\n ...defaultOptions,\n ...props,\n };\n let _formState: FormState = {\n isDirty: false,\n isValidating: false,\n dirtyFields: {} as FieldNamesMarkedBoolean,\n isSubmitted: false,\n submitCount: 0,\n touchedFields: {} as FieldNamesMarkedBoolean,\n isSubmitting: false,\n isSubmitSuccessful: false,\n isValid: false,\n errors: {} as FieldErrors,\n };\n let _fields = {};\n let _defaultValues = _options.defaultValues || {};\n let _formValues = _options.shouldUnregister\n ? {}\n : cloneObject(_defaultValues);\n let _stateFlags = {\n action: false,\n mount: false,\n watch: false,\n };\n let _names: Names = {\n mount: new Set(),\n unMount: new Set(),\n array: new Set(),\n watch: new Set(),\n } as Names;\n let delayErrorCallback: DelayCallback;\n let timer = 0;\n let validateFields: Record = {};\n const _proxyFormState = {\n isDirty: false,\n dirtyFields: false,\n touchedFields: false,\n isValidating: false,\n isValid: false,\n errors: false,\n };\n const _subjects: Subjects = {\n watch: createSubject(),\n array: createSubject(),\n state: createSubject(),\n };\n\n const validationModeBeforeSubmit = getValidationModes(_options.mode);\n const validationModeAfterSubmit = getValidationModes(_options.reValidateMode);\n const shouldDisplayAllAssociatedErrors =\n _options.criteriaMode === VALIDATION_MODE.all;\n\n const debounce =\n (callback: T, wait: number) =>\n (...args: any) => {\n clearTimeout(timer);\n timer = window.setTimeout(() => callback(...args), wait);\n };\n\n const _updateValid = async (shouldSkipRender?: boolean) => {\n let isValid = false;\n\n if (_proxyFormState.isValid) {\n isValid = _options.resolver\n ? isEmptyObject((await _executeSchema()).errors)\n : await executeBuildInValidation(_fields, true);\n\n if (!shouldSkipRender && isValid !== _formState.isValid) {\n _formState.isValid = isValid;\n _subjects.state.next({\n isValid,\n });\n }\n }\n\n return isValid;\n };\n\n const _updateFieldArray: BatchFieldArrayUpdate = (\n name,\n method,\n args,\n values = [],\n shouldSetValues = true,\n shouldSetFields = true,\n ) => {\n _stateFlags.action = true;\n\n if (shouldSetFields && Array.isArray(get(_fields, name))) {\n const fieldValues = method(get(_fields, name), args.argA, args.argB);\n shouldSetValues && set(_fields, name, fieldValues);\n }\n\n if (\n _proxyFormState.errors &&\n shouldSetFields &&\n Array.isArray(get(_formState.errors, name))\n ) {\n const errors = method(get(_formState.errors, name), args.argA, args.argB);\n shouldSetValues && set(_formState.errors, name, errors);\n unsetEmptyArray(_formState.errors, name);\n }\n\n if (\n _proxyFormState.touchedFields &&\n Array.isArray(get(_formState.touchedFields, name))\n ) {\n const touchedFields = method(\n get(_formState.touchedFields, name),\n args.argA,\n args.argB,\n );\n shouldSetValues && set(_formState.touchedFields, name, touchedFields);\n }\n\n if (_proxyFormState.dirtyFields) {\n _formState.dirtyFields = getDirtyFields(_defaultValues, _formValues);\n }\n\n _subjects.state.next({\n isDirty: _getDirty(name, values),\n dirtyFields: _formState.dirtyFields,\n errors: _formState.errors,\n isValid: _formState.isValid,\n });\n };\n\n const updateErrors = (name: InternalFieldName, error: FieldError) => (\n set(_formState.errors, name, error),\n _subjects.state.next({\n errors: _formState.errors,\n })\n );\n\n const updateValidAndValue = (\n name: InternalFieldName,\n shouldSkipSetValueAs: boolean,\n value?: unknown,\n ref?: Ref,\n ) => {\n const field: Field = get(_fields, name);\n\n if (field) {\n const defaultValue = get(\n _formValues,\n name,\n isUndefined(value) ? get(_defaultValues, name) : value,\n );\n\n isUndefined(defaultValue) ||\n (ref && (ref as HTMLInputElement).defaultChecked) ||\n shouldSkipSetValueAs\n ? set(\n _formValues,\n name,\n shouldSkipSetValueAs ? defaultValue : getFieldValue(field._f),\n )\n : setFieldValue(name, defaultValue);\n\n _stateFlags.mount && _updateValid();\n }\n };\n\n const updateTouchAndDirty = (\n name: InternalFieldName,\n fieldValue: unknown,\n isBlurEvent?: boolean,\n shouldDirty?: boolean,\n shouldRender?: boolean,\n ): Partial<\n Pick, 'dirtyFields' | 'isDirty' | 'touchedFields'>\n > => {\n let isFieldDirty = false;\n const output: Partial> & { name: string } = {\n name,\n };\n const isPreviousFieldTouched = get(_formState.touchedFields, name);\n\n if (_proxyFormState.isDirty) {\n const isPreviousFormDirty = _formState.isDirty;\n\n _formState.isDirty = output.isDirty = _getDirty();\n isFieldDirty = isPreviousFormDirty !== output.isDirty;\n }\n\n if (_proxyFormState.dirtyFields && (!isBlurEvent || shouldDirty)) {\n const isPreviousFieldDirty = get(_formState.dirtyFields, name);\n const isCurrentFieldPristine = deepEqual(\n get(_defaultValues, name),\n fieldValue,\n );\n\n isCurrentFieldPristine\n ? unset(_formState.dirtyFields, name)\n : set(_formState.dirtyFields as TFieldValues, name, true);\n output.dirtyFields = _formState.dirtyFields;\n isFieldDirty =\n isFieldDirty ||\n isPreviousFieldDirty !== get(_formState.dirtyFields, name);\n }\n\n if (isBlurEvent && !isPreviousFieldTouched) {\n set(_formState.touchedFields as TFieldValues, name, isBlurEvent);\n output.touchedFields = _formState.touchedFields;\n isFieldDirty =\n isFieldDirty ||\n (_proxyFormState.touchedFields &&\n isPreviousFieldTouched !== isBlurEvent);\n }\n\n isFieldDirty && shouldRender && _subjects.state.next(output);\n\n return isFieldDirty ? output : {};\n };\n\n const shouldRenderByError = async (\n shouldSkipRender: boolean,\n name: InternalFieldName,\n isValid: boolean,\n error?: FieldError,\n fieldState?: {\n dirty?: FieldNamesMarkedBoolean;\n isDirty?: boolean;\n touched?: FieldNamesMarkedBoolean;\n },\n ): Promise => {\n const previousFieldError = get(_formState.errors, name);\n const shouldUpdateValid =\n _proxyFormState.isValid && _formState.isValid !== isValid;\n\n if (props.delayError && error) {\n delayErrorCallback =\n delayErrorCallback || debounce(updateErrors, props.delayError);\n delayErrorCallback(name, error);\n } else {\n clearTimeout(timer);\n error\n ? set(_formState.errors, name, error)\n : unset(_formState.errors, name);\n }\n\n if (\n ((error ? !deepEqual(previousFieldError, error) : previousFieldError) ||\n !isEmptyObject(fieldState) ||\n shouldUpdateValid) &&\n !shouldSkipRender\n ) {\n const updatedFormState = {\n ...fieldState,\n ...(shouldUpdateValid ? { isValid } : {}),\n errors: _formState.errors,\n name,\n };\n\n _formState = {\n ..._formState,\n ...updatedFormState,\n };\n\n _subjects.state.next(updatedFormState);\n }\n\n validateFields[name]--;\n\n if (_proxyFormState.isValidating && !validateFields[name]) {\n _subjects.state.next({\n isValidating: false,\n });\n validateFields = {};\n }\n };\n\n const _executeSchema = async (name?: InternalFieldName[]) =>\n _options.resolver\n ? await _options.resolver(\n { ..._formValues } as UnpackNestedValue,\n _options.context,\n getResolverOptions(\n name || _names.mount,\n _fields,\n _options.criteriaMode,\n _options.shouldUseNativeValidation,\n ),\n )\n : ({} as ResolverResult);\n\n const executeSchemaAndUpdateState = async (names?: InternalFieldName[]) => {\n const { errors } = await _executeSchema();\n\n if (names) {\n for (const name of names) {\n const error = get(errors, name);\n error\n ? set(_formState.errors, name, error)\n : unset(_formState.errors, name);\n }\n } else {\n _formState.errors = errors as FieldErrors;\n }\n\n return errors;\n };\n\n const executeBuildInValidation = async (\n fields: FieldRefs,\n shouldOnlyCheckValid?: boolean,\n context = {\n valid: true,\n },\n ) => {\n for (const name in fields) {\n const field = fields[name];\n\n if (field) {\n const fieldReference = field._f;\n const fieldValue = omit(field, '_f');\n\n if (fieldReference) {\n const fieldError = await validateField(\n field,\n get(_formValues, fieldReference.name),\n shouldDisplayAllAssociatedErrors,\n _options.shouldUseNativeValidation,\n );\n\n if (fieldError[fieldReference.name]) {\n context.valid = false;\n\n if (shouldOnlyCheckValid) {\n break;\n }\n }\n\n if (!shouldOnlyCheckValid) {\n fieldError[fieldReference.name]\n ? set(\n _formState.errors,\n fieldReference.name,\n fieldError[fieldReference.name],\n )\n : unset(_formState.errors, fieldReference.name);\n }\n }\n\n fieldValue &&\n (await executeBuildInValidation(\n fieldValue,\n shouldOnlyCheckValid,\n context,\n ));\n }\n }\n\n return context.valid;\n };\n\n const _removeUnmounted = () => {\n for (const name of _names.unMount) {\n const field: Field = get(_fields, name);\n\n field &&\n (field._f.refs\n ? field._f.refs.every((ref) => !live(ref))\n : !live(field._f.ref)) &&\n unregister(name as FieldPath);\n }\n\n _names.unMount = new Set();\n };\n\n const _getDirty: GetIsDirty = (name, data) => (\n name && data && set(_formValues, name, data),\n !deepEqual(getValues(), _defaultValues)\n );\n\n const _getWatch: WatchInternal = (\n names,\n defaultValue,\n isGlobal,\n ) => {\n const fieldValues = {\n ...(_stateFlags.mount\n ? _formValues\n : isUndefined(defaultValue)\n ? _defaultValues\n : isString(names)\n ? { [names]: defaultValue }\n : defaultValue),\n };\n\n return generateWatchOutput(names, _names, fieldValues, isGlobal);\n };\n\n const _getFieldArray = (name: InternalFieldName): any[] =>\n compact(\n get(\n _stateFlags.mount ? _formValues : _defaultValues,\n name,\n props.shouldUnregister ? get(_defaultValues, name, []) : [],\n ),\n );\n\n const setFieldValue = (\n name: InternalFieldName,\n value: SetFieldValue,\n options: SetValueConfig = {},\n ) => {\n const field: Field = get(_fields, name);\n let fieldValue: unknown = value;\n\n if (field) {\n const fieldReference = field._f;\n\n if (fieldReference) {\n !fieldReference.disabled &&\n set(_formValues, name, getFieldValueAs(value, fieldReference));\n\n fieldValue =\n isWeb && isHTMLElement(fieldReference.ref) && isNullOrUndefined(value)\n ? ''\n : value;\n\n if (isMultipleSelect(fieldReference.ref)) {\n [...fieldReference.ref.options].forEach(\n (selectRef) =>\n (selectRef.selected = (\n fieldValue as InternalFieldName[]\n ).includes(selectRef.value)),\n );\n } else if (fieldReference.refs) {\n if (isCheckBoxInput(fieldReference.ref)) {\n fieldReference.refs.length > 1\n ? fieldReference.refs.forEach(\n (checkboxRef) =>\n (checkboxRef.checked = Array.isArray(fieldValue)\n ? !!(fieldValue as []).find(\n (data: string) => data === checkboxRef.value,\n )\n : fieldValue === checkboxRef.value),\n )\n : fieldReference.refs[0] &&\n (fieldReference.refs[0].checked = !!fieldValue);\n } else {\n fieldReference.refs.forEach(\n (radioRef: HTMLInputElement) =>\n (radioRef.checked = radioRef.value === fieldValue),\n );\n }\n } else if (!isFileInput(fieldReference.ref)) {\n fieldReference.ref.value = fieldValue;\n\n if (!fieldReference.ref.type) {\n _subjects.watch.next({\n name,\n });\n }\n }\n }\n }\n\n (options.shouldDirty || options.shouldTouch) &&\n updateTouchAndDirty(\n name,\n fieldValue,\n options.shouldTouch,\n options.shouldDirty,\n true,\n );\n\n options.shouldValidate && trigger(name as Path);\n };\n\n const setValues = <\n T extends InternalFieldName,\n K extends SetFieldValue,\n U,\n >(\n name: T,\n value: K,\n options: U,\n ) => {\n for (const fieldKey in value) {\n const fieldValue = value[fieldKey];\n const fieldName = `${name}.${fieldKey}` as Path;\n const field = get(_fields, fieldName);\n\n (_names.array.has(name) ||\n !isPrimitive(fieldValue) ||\n (field && !field._f)) &&\n !isDateObject(fieldValue)\n ? setValues(fieldName, fieldValue, options)\n : setFieldValue(fieldName, fieldValue, options);\n }\n };\n\n const setValue: UseFormSetValue = (\n name,\n value,\n options = {},\n ) => {\n const field = get(_fields, name);\n const isFieldArray = _names.array.has(name);\n const cloneValue = cloneObject(value);\n\n set(_formValues, name, cloneValue);\n\n if (isFieldArray) {\n _subjects.array.next({\n name,\n values: _formValues,\n });\n\n if (\n (_proxyFormState.isDirty || _proxyFormState.dirtyFields) &&\n options.shouldDirty\n ) {\n _formState.dirtyFields = getDirtyFields(_defaultValues, _formValues);\n\n _subjects.state.next({\n name,\n dirtyFields: _formState.dirtyFields,\n isDirty: _getDirty(name, cloneValue),\n });\n }\n } else {\n field && !field._f && !isNullOrUndefined(cloneValue)\n ? setValues(name, cloneValue, options)\n : setFieldValue(name, cloneValue, options);\n }\n\n isWatched(name, _names) && _subjects.state.next({});\n _subjects.watch.next({\n name,\n });\n };\n\n const onChange: ChangeHandler = async (event) => {\n const target = event.target;\n let name = target.name;\n const field: Field = get(_fields, name);\n\n if (field) {\n let error;\n let isValid;\n const fieldValue = target.type\n ? getFieldValue(field._f)\n : getEventValue(event);\n const isBlurEvent = event.type === EVENTS.BLUR;\n const shouldSkipValidation =\n (!hasValidation(field._f) &&\n !_options.resolver &&\n !get(_formState.errors, name) &&\n !field._f.deps) ||\n skipValidation(\n isBlurEvent,\n get(_formState.touchedFields, name),\n _formState.isSubmitted,\n validationModeAfterSubmit,\n validationModeBeforeSubmit,\n );\n const watched = isWatched(name, _names, isBlurEvent);\n\n set(_formValues, name, fieldValue);\n\n if (isBlurEvent) {\n field._f.onBlur && field._f.onBlur(event);\n } else if (field._f.onChange) {\n field._f.onChange(event);\n }\n\n const fieldState = updateTouchAndDirty(\n name,\n fieldValue,\n isBlurEvent,\n false,\n );\n\n const shouldRender = !isEmptyObject(fieldState) || watched;\n\n !isBlurEvent &&\n _subjects.watch.next({\n name,\n type: event.type,\n });\n\n if (shouldSkipValidation) {\n return (\n shouldRender &&\n _subjects.state.next({ name, ...(watched ? {} : fieldState) })\n );\n }\n\n !isBlurEvent && watched && _subjects.state.next({});\n\n validateFields[name] = validateFields[name] ? +1 : 1;\n\n _proxyFormState.isValidating &&\n _subjects.state.next({\n isValidating: true,\n });\n\n if (_options.resolver) {\n const { errors } = await _executeSchema([name]);\n const previousErrorLookupResult = schemaErrorLookup(\n _formState.errors,\n _fields,\n name,\n );\n const errorLookupResult = schemaErrorLookup(\n errors,\n _fields,\n previousErrorLookupResult.name || name,\n );\n\n error = errorLookupResult.error;\n name = errorLookupResult.name;\n\n isValid = isEmptyObject(errors);\n } else {\n error = (\n await validateField(\n field,\n get(_formValues, name),\n shouldDisplayAllAssociatedErrors,\n _options.shouldUseNativeValidation,\n )\n )[name];\n\n isValid = await _updateValid(true);\n }\n\n field._f.deps && trigger(field._f.deps as FieldPath[]);\n\n shouldRenderByError(false, name, isValid, error, fieldState);\n }\n };\n\n const trigger: UseFormTrigger = async (name, options = {}) => {\n let isValid;\n let validationResult;\n const fieldNames = convertToArrayPayload(name) as InternalFieldName[];\n\n _subjects.state.next({\n isValidating: true,\n });\n\n if (_options.resolver) {\n const errors = await executeSchemaAndUpdateState(\n isUndefined(name) ? name : fieldNames,\n );\n\n isValid = isEmptyObject(errors);\n validationResult = name\n ? !fieldNames.some((name) => get(errors, name))\n : isValid;\n } else if (name) {\n validationResult = (\n await Promise.all(\n fieldNames.map(async (fieldName) => {\n const field = get(_fields, fieldName);\n return await executeBuildInValidation(\n field && field._f ? { [fieldName]: field } : field,\n );\n }),\n )\n ).every(Boolean);\n !(!validationResult && !_formState.isValid) && _updateValid();\n } else {\n validationResult = isValid = await executeBuildInValidation(_fields);\n }\n\n _subjects.state.next({\n ...(!isString(name) ||\n (_proxyFormState.isValid && isValid !== _formState.isValid)\n ? {}\n : { name }),\n ...(_options.resolver ? { isValid } : {}),\n errors: _formState.errors,\n isValidating: false,\n });\n\n options.shouldFocus &&\n !validationResult &&\n focusFieldBy(\n _fields,\n (key) => get(_formState.errors, key),\n name ? fieldNames : _names.mount,\n );\n\n return validationResult;\n };\n\n const getValues: UseFormGetValues = (\n fieldNames?:\n | FieldPath\n | ReadonlyArray>,\n ) => {\n const values = {\n ..._defaultValues,\n ...(_stateFlags.mount ? _formValues : {}),\n };\n\n return isUndefined(fieldNames)\n ? values\n : isString(fieldNames)\n ? get(values, fieldNames as InternalFieldName)\n : fieldNames.map((name) => get(values, name as InternalFieldName));\n };\n\n const _getFieldState: _UseFormGetFieldState = (\n name,\n formState,\n ) => ({\n invalid: !!get((formState || _formState).errors, name),\n isDirty: get((formState || _formState).dirtyFields, name),\n isTouched: get((formState || _formState).touchedFields, name),\n error: get((formState || _formState).errors, name),\n });\n\n const clearErrors: UseFormClearErrors = (name) => {\n name\n ? convertToArrayPayload(name).forEach((inputName) =>\n unset(_formState.errors, inputName),\n )\n : (_formState.errors = {} as FieldErrors);\n\n _subjects.state.next({\n errors: _formState.errors,\n });\n };\n\n const setError: UseFormSetError = (name, error, options) => {\n const ref = ((get(_fields, name, { _f: {} }) as Field)._f || {}).ref;\n\n set(_formState.errors, name, {\n ...error,\n ref,\n });\n\n _subjects.state.next({\n name,\n errors: _formState.errors,\n isValid: false,\n });\n\n options && options.shouldFocus && ref && ref.focus && ref.focus();\n };\n\n const watch: UseFormWatch = (\n name?:\n | FieldPath\n | ReadonlyArray>\n | WatchObserver,\n defaultValue?: unknown,\n ) =>\n isFunction(name)\n ? _subjects.watch.subscribe({\n next: (info) =>\n name(\n _getWatch(\n undefined,\n defaultValue as UnpackNestedValue>,\n ),\n info as {\n name?: FieldPath;\n type?: EventType;\n value?: unknown;\n },\n ),\n })\n : _getWatch(\n name as InternalFieldName | InternalFieldName[],\n defaultValue as UnpackNestedValue>,\n true,\n );\n\n const unregister: UseFormUnregister = (name, options = {}) => {\n for (const fieldName of name ? convertToArrayPayload(name) : _names.mount) {\n _names.mount.delete(fieldName);\n _names.array.delete(fieldName);\n\n if (get(_fields, fieldName)) {\n if (!options.keepValue) {\n unset(_fields, fieldName);\n unset(_formValues, fieldName);\n }\n\n !options.keepError && unset(_formState.errors, fieldName);\n !options.keepDirty && unset(_formState.dirtyFields, fieldName);\n !options.keepTouched && unset(_formState.touchedFields, fieldName);\n !_options.shouldUnregister &&\n !options.keepDefaultValue &&\n unset(_defaultValues, fieldName);\n }\n }\n\n _subjects.watch.next({});\n\n _subjects.state.next({\n ..._formState,\n ...(!options.keepDirty ? {} : { isDirty: _getDirty() }),\n });\n\n !options.keepIsValid && _updateValid();\n };\n\n const register: UseFormRegister = (name, options = {}) => {\n let field = get(_fields, name);\n const disabledIsDefined = isBoolean(options.disabled);\n\n set(_fields, name, {\n _f: {\n ...(field && field._f ? field._f : { ref: { name } }),\n name,\n mount: true,\n ...options,\n },\n });\n _names.mount.add(name);\n\n field\n ? disabledIsDefined &&\n set(\n _formValues,\n name,\n options.disabled\n ? undefined\n : get(_formValues, name, getFieldValue(field._f)),\n )\n : updateValidAndValue(name, true, options.value);\n\n return {\n ...(disabledIsDefined ? { disabled: options.disabled } : {}),\n ...(_options.shouldUseNativeValidation\n ? {\n required: !!options.required,\n min: getRuleValue(options.min),\n max: getRuleValue(options.max),\n minLength: getRuleValue(options.minLength) as number,\n maxLength: getRuleValue(options.maxLength) as number,\n pattern: getRuleValue(options.pattern) as string,\n }\n : {}),\n name,\n onChange,\n onBlur: onChange,\n ref: (ref: HTMLInputElement | null): void => {\n if (ref) {\n register(name, options);\n field = get(_fields, name);\n\n const fieldRef = isUndefined(ref.value)\n ? ref.querySelectorAll\n ? (ref.querySelectorAll('input,select,textarea')[0] as Ref) || ref\n : ref\n : ref;\n const radioOrCheckbox = isRadioOrCheckbox(fieldRef);\n const refs = field._f.refs || [];\n\n if (\n radioOrCheckbox\n ? refs.find((option: Ref) => option === fieldRef)\n : fieldRef === field._f.ref\n ) {\n return;\n }\n\n set(_fields, name, {\n _f: {\n ...field._f,\n ...(radioOrCheckbox\n ? {\n refs: refs.concat(fieldRef).filter(live),\n ref: { type: fieldRef.type, name },\n }\n : { ref: fieldRef }),\n },\n });\n\n updateValidAndValue(name, false, undefined, fieldRef);\n } else {\n field = get(_fields, name, {});\n\n if (field._f) {\n field._f.mount = false;\n }\n\n (_options.shouldUnregister || options.shouldUnregister) &&\n !(isNameInFieldArray(_names.array, name) && _stateFlags.action) &&\n _names.unMount.add(name);\n }\n },\n };\n };\n\n const handleSubmit: UseFormHandleSubmit =\n (onValid, onInvalid) => async (e) => {\n if (e) {\n e.preventDefault && e.preventDefault();\n e.persist && e.persist();\n }\n let hasNoPromiseError = true;\n let fieldValues: any = _options.shouldUnregister\n ? cloneObject(_formValues)\n : { ..._formValues };\n\n _subjects.state.next({\n isSubmitting: true,\n });\n\n try {\n if (_options.resolver) {\n const { errors, values } = await _executeSchema();\n _formState.errors = errors as FieldErrors;\n fieldValues = values;\n } else {\n await executeBuildInValidation(_fields);\n }\n\n if (\n isEmptyObject(_formState.errors) &&\n Object.keys(_formState.errors).every((name) => get(fieldValues, name))\n ) {\n _subjects.state.next({\n errors: {} as FieldErrors,\n isSubmitting: true,\n });\n await onValid(fieldValues, e);\n } else {\n onInvalid && (await onInvalid(_formState.errors, e));\n _options.shouldFocusError &&\n focusFieldBy(\n _fields,\n (key) => get(_formState.errors, key),\n _names.mount,\n );\n }\n } catch (err) {\n hasNoPromiseError = false;\n throw err;\n } finally {\n _formState.isSubmitted = true;\n _subjects.state.next({\n isSubmitted: true,\n isSubmitting: false,\n isSubmitSuccessful:\n isEmptyObject(_formState.errors) && hasNoPromiseError,\n submitCount: _formState.submitCount + 1,\n errors: _formState.errors,\n });\n }\n };\n\n const resetField: UseFormResetField = (name, options = {}) => {\n if (get(_fields, name)) {\n if (isUndefined(options.defaultValue)) {\n setValue(name, get(_defaultValues, name));\n } else {\n setValue(name, options.defaultValue);\n set(_defaultValues, name, options.defaultValue);\n }\n\n if (!options.keepTouched) {\n unset(_formState.touchedFields, name);\n }\n\n if (!options.keepDirty) {\n unset(_formState.dirtyFields, name);\n _formState.isDirty = options.defaultValue\n ? _getDirty(name, get(_defaultValues, name))\n : _getDirty();\n }\n\n if (!options.keepError) {\n unset(_formState.errors, name);\n _proxyFormState.isValid && _updateValid();\n }\n\n _subjects.state.next({ ..._formState });\n }\n };\n\n const reset: UseFormReset = (\n formValues,\n keepStateOptions = {},\n ) => {\n const updatedValues = formValues || _defaultValues;\n const cloneUpdatedValues = cloneObject(updatedValues);\n const values =\n formValues && !isEmptyObject(formValues)\n ? cloneUpdatedValues\n : _defaultValues;\n\n if (!keepStateOptions.keepDefaultValues) {\n _defaultValues = updatedValues;\n }\n\n if (!keepStateOptions.keepValues) {\n if (isWeb && isUndefined(formValues)) {\n for (const name of _names.mount) {\n const field = get(_fields, name);\n if (field && field._f) {\n const fieldReference = Array.isArray(field._f.refs)\n ? field._f.refs[0]\n : field._f.ref;\n\n try {\n isHTMLElement(fieldReference) &&\n fieldReference.closest('form')!.reset();\n break;\n } catch {}\n }\n }\n }\n\n _formValues = props.shouldUnregister\n ? keepStateOptions.keepDefaultValues\n ? cloneObject(_defaultValues)\n : {}\n : cloneUpdatedValues;\n\n _fields = {};\n\n _subjects.array.next({\n values,\n });\n\n _subjects.watch.next({\n values,\n });\n }\n\n _names = {\n mount: new Set(),\n unMount: new Set(),\n array: new Set(),\n watch: new Set(),\n watchAll: false,\n focus: '',\n };\n\n _stateFlags.mount =\n !_proxyFormState.isValid || !!keepStateOptions.keepIsValid;\n\n _stateFlags.watch = !!props.shouldUnregister;\n\n _subjects.state.next({\n submitCount: keepStateOptions.keepSubmitCount\n ? _formState.submitCount\n : 0,\n isDirty: keepStateOptions.keepDirty\n ? _formState.isDirty\n : keepStateOptions.keepDefaultValues\n ? !deepEqual(formValues, _defaultValues)\n : false,\n isSubmitted: keepStateOptions.keepIsSubmitted\n ? _formState.isSubmitted\n : false,\n dirtyFields: keepStateOptions.keepDirty\n ? _formState.dirtyFields\n : ((keepStateOptions.keepDefaultValues && formValues\n ? Object.entries(formValues).reduce(\n (previous, [key, value]) => ({\n ...previous,\n [key]: value !== get(_defaultValues, key),\n }),\n {},\n )\n : {}) as FieldNamesMarkedBoolean),\n touchedFields: keepStateOptions.keepTouched\n ? _formState.touchedFields\n : ({} as FieldNamesMarkedBoolean),\n errors: keepStateOptions.keepErrors\n ? _formState.errors\n : ({} as FieldErrors),\n isSubmitting: false,\n isSubmitSuccessful: false,\n });\n };\n\n const setFocus: UseFormSetFocus = (name) => {\n const field = get(_fields, name)._f;\n (field.ref.focus ? field.ref : field.refs[0]).focus();\n };\n\n return {\n control: {\n register,\n unregister,\n _executeSchema,\n _getWatch,\n _getDirty,\n _updateValid,\n _removeUnmounted,\n _updateFieldArray,\n _getFieldArray,\n _subjects,\n _proxyFormState,\n get _fields() {\n return _fields;\n },\n set _fields(value) {\n _fields = value;\n },\n get _formValues() {\n return _formValues;\n },\n set _formValues(value) {\n _formValues = value;\n },\n get _stateFlags() {\n return _stateFlags;\n },\n set _stateFlags(value) {\n _stateFlags = value;\n },\n get _defaultValues() {\n return _defaultValues;\n },\n set _defaultValues(value) {\n _defaultValues = value;\n },\n get _names() {\n return _names;\n },\n set _names(value) {\n _names = value;\n },\n get _formState() {\n return _formState;\n },\n set _formState(value) {\n _formState = value;\n },\n get _options() {\n return _options;\n },\n set _options(value) {\n _options = {\n ..._options,\n ...value,\n };\n },\n },\n trigger,\n register,\n handleSubmit,\n watch,\n setValue,\n getValues,\n reset,\n resetField,\n clearErrors,\n unregister,\n setError,\n setFocus,\n _getFieldState,\n };\n}\n","import React from 'react';\n\nimport { createFormControl } from './logic/createFormControl';\nimport getProxyFormState from './logic/getProxyFormState';\nimport shouldRenderFormState from './logic/shouldRenderFormState';\nimport {\n FieldErrors,\n FieldNamesMarkedBoolean,\n FieldValues,\n FormState,\n UseFormProps,\n UseFormReturn,\n} from './types';\nimport { useSubscribe } from './useSubscribe';\n\nexport function useForm<\n TFieldValues extends FieldValues = FieldValues,\n TContext extends object = object,\n>(\n props: UseFormProps = {},\n): UseFormReturn {\n const _formControl = React.useRef<\n UseFormReturn | undefined\n >();\n const [formState, updateFormState] = React.useState>({\n isDirty: false,\n isValidating: false,\n dirtyFields: {} as FieldNamesMarkedBoolean,\n isSubmitted: false,\n submitCount: 0,\n touchedFields: {} as FieldNamesMarkedBoolean,\n isSubmitting: false,\n isSubmitSuccessful: false,\n isValid: false,\n errors: {} as FieldErrors,\n });\n\n if (_formControl.current) {\n _formControl.current.control._options = props;\n } else {\n _formControl.current = {\n ...createFormControl(props),\n formState,\n };\n }\n\n const control = _formControl.current.control;\n\n const callback = React.useCallback(\n (value) => {\n if (shouldRenderFormState(value, control._proxyFormState, true)) {\n control._formState = {\n ...control._formState,\n ...value,\n };\n\n updateFormState({ ...control._formState });\n }\n },\n [control],\n );\n\n useSubscribe({\n subject: control._subjects.state,\n callback,\n });\n\n React.useEffect(() => {\n if (!control._stateFlags.mount) {\n control._proxyFormState.isValid && control._updateValid();\n control._stateFlags.mount = true;\n }\n if (control._stateFlags.watch) {\n control._stateFlags.watch = false;\n control._subjects.state.next({});\n }\n control._removeUnmounted();\n });\n\n _formControl.current.formState = getProxyFormState(\n formState,\n control._proxyFormState,\n );\n\n return _formControl.current;\n}\n","import _objectSpread from '@babel/runtime/helpers/esm/objectSpread2';\n\n/**\n * Adapted from React: https://github.com/facebook/react/blob/master/packages/shared/formatProdErrorMessage.js\n *\n * Do not require this module directly! Use normal throw error calls. These messages will be replaced with error codes\n * during build.\n * @param {number} code\n */\nfunction formatProdErrorMessage(code) {\n return \"Minified Redux error #\" + code + \"; visit https://redux.js.org/Errors?code=\" + code + \" for the full message or \" + 'use the non-minified dev environment for full errors. ';\n}\n\n// Inlined version of the `symbol-observable` polyfill\nvar $$observable = (function () {\n return typeof Symbol === 'function' && Symbol.observable || '@@observable';\n})();\n\n/**\n * These are private action types reserved by Redux.\n * For any unknown actions, you must return the current state.\n * If the current state is undefined, you must return the initial state.\n * Do not reference these action types directly in your code.\n */\nvar randomString = function randomString() {\n return Math.random().toString(36).substring(7).split('').join('.');\n};\n\nvar ActionTypes = {\n INIT: \"@@redux/INIT\" + randomString(),\n REPLACE: \"@@redux/REPLACE\" + randomString(),\n PROBE_UNKNOWN_ACTION: function PROBE_UNKNOWN_ACTION() {\n return \"@@redux/PROBE_UNKNOWN_ACTION\" + randomString();\n }\n};\n\n/**\n * @param {any} obj The object to inspect.\n * @returns {boolean} True if the argument appears to be a plain object.\n */\nfunction isPlainObject(obj) {\n if (typeof obj !== 'object' || obj === null) return false;\n var proto = obj;\n\n while (Object.getPrototypeOf(proto) !== null) {\n proto = Object.getPrototypeOf(proto);\n }\n\n return Object.getPrototypeOf(obj) === proto;\n}\n\nfunction kindOf(val) {\n var typeOfVal = typeof val;\n\n if (process.env.NODE_ENV !== 'production') {\n // Inlined / shortened version of `kindOf` from https://github.com/jonschlinkert/kind-of\n function miniKindOf(val) {\n if (val === void 0) return 'undefined';\n if (val === null) return 'null';\n var type = typeof val;\n\n switch (type) {\n case 'boolean':\n case 'string':\n case 'number':\n case 'symbol':\n case 'function':\n {\n return type;\n }\n }\n\n if (Array.isArray(val)) return 'array';\n if (isDate(val)) return 'date';\n if (isError(val)) return 'error';\n var constructorName = ctorName(val);\n\n switch (constructorName) {\n case 'Symbol':\n case 'Promise':\n case 'WeakMap':\n case 'WeakSet':\n case 'Map':\n case 'Set':\n return constructorName;\n } // other\n\n\n return type.slice(8, -1).toLowerCase().replace(/\\s/g, '');\n }\n\n function ctorName(val) {\n return typeof val.constructor === 'function' ? val.constructor.name : null;\n }\n\n function isError(val) {\n return val instanceof Error || typeof val.message === 'string' && val.constructor && typeof val.constructor.stackTraceLimit === 'number';\n }\n\n function isDate(val) {\n if (val instanceof Date) return true;\n return typeof val.toDateString === 'function' && typeof val.getDate === 'function' && typeof val.setDate === 'function';\n }\n\n typeOfVal = miniKindOf(val);\n }\n\n return typeOfVal;\n}\n\n/**\n * Creates a Redux store that holds the state tree.\n * The only way to change the data in the store is to call `dispatch()` on it.\n *\n * There should only be a single store in your app. To specify how different\n * parts of the state tree respond to actions, you may combine several reducers\n * into a single reducer function by using `combineReducers`.\n *\n * @param {Function} reducer A function that returns the next state tree, given\n * the current state tree and the action to handle.\n *\n * @param {any} [preloadedState] The initial state. You may optionally specify it\n * to hydrate the state from the server in universal apps, or to restore a\n * previously serialized user session.\n * If you use `combineReducers` to produce the root reducer function, this must be\n * an object with the same shape as `combineReducers` keys.\n *\n * @param {Function} [enhancer] The store enhancer. You may optionally specify it\n * to enhance the store with third-party capabilities such as middleware,\n * time travel, persistence, etc. The only store enhancer that ships with Redux\n * is `applyMiddleware()`.\n *\n * @returns {Store} A Redux store that lets you read the state, dispatch actions\n * and subscribe to changes.\n */\n\nfunction createStore(reducer, preloadedState, enhancer) {\n var _ref2;\n\n if (typeof preloadedState === 'function' && typeof enhancer === 'function' || typeof enhancer === 'function' && typeof arguments[3] === 'function') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(0) : 'It looks like you are passing several store enhancers to ' + 'createStore(). This is not supported. Instead, compose them ' + 'together to a single function. See https://redux.js.org/tutorials/fundamentals/part-4-store#creating-a-store-with-enhancers for an example.');\n }\n\n if (typeof preloadedState === 'function' && typeof enhancer === 'undefined') {\n enhancer = preloadedState;\n preloadedState = undefined;\n }\n\n if (typeof enhancer !== 'undefined') {\n if (typeof enhancer !== 'function') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(1) : \"Expected the enhancer to be a function. Instead, received: '\" + kindOf(enhancer) + \"'\");\n }\n\n return enhancer(createStore)(reducer, preloadedState);\n }\n\n if (typeof reducer !== 'function') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(2) : \"Expected the root reducer to be a function. Instead, received: '\" + kindOf(reducer) + \"'\");\n }\n\n var currentReducer = reducer;\n var currentState = preloadedState;\n var currentListeners = [];\n var nextListeners = currentListeners;\n var isDispatching = false;\n /**\n * This makes a shallow copy of currentListeners so we can use\n * nextListeners as a temporary list while dispatching.\n *\n * This prevents any bugs around consumers calling\n * subscribe/unsubscribe in the middle of a dispatch.\n */\n\n function ensureCanMutateNextListeners() {\n if (nextListeners === currentListeners) {\n nextListeners = currentListeners.slice();\n }\n }\n /**\n * Reads the state tree managed by the store.\n *\n * @returns {any} The current state tree of your application.\n */\n\n\n function getState() {\n if (isDispatching) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(3) : 'You may not call store.getState() while the reducer is executing. ' + 'The reducer has already received the state as an argument. ' + 'Pass it down from the top reducer instead of reading it from the store.');\n }\n\n return currentState;\n }\n /**\n * Adds a change listener. It will be called any time an action is dispatched,\n * and some part of the state tree may potentially have changed. You may then\n * call `getState()` to read the current state tree inside the callback.\n *\n * You may call `dispatch()` from a change listener, with the following\n * caveats:\n *\n * 1. The subscriptions are snapshotted just before every `dispatch()` call.\n * If you subscribe or unsubscribe while the listeners are being invoked, this\n * will not have any effect on the `dispatch()` that is currently in progress.\n * However, the next `dispatch()` call, whether nested or not, will use a more\n * recent snapshot of the subscription list.\n *\n * 2. The listener should not expect to see all state changes, as the state\n * might have been updated multiple times during a nested `dispatch()` before\n * the listener is called. It is, however, guaranteed that all subscribers\n * registered before the `dispatch()` started will be called with the latest\n * state by the time it exits.\n *\n * @param {Function} listener A callback to be invoked on every dispatch.\n * @returns {Function} A function to remove this change listener.\n */\n\n\n function subscribe(listener) {\n if (typeof listener !== 'function') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(4) : \"Expected the listener to be a function. Instead, received: '\" + kindOf(listener) + \"'\");\n }\n\n if (isDispatching) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(5) : 'You may not call store.subscribe() while the reducer is executing. ' + 'If you would like to be notified after the store has been updated, subscribe from a ' + 'component and invoke store.getState() in the callback to access the latest state. ' + 'See https://redux.js.org/api/store#subscribelistener for more details.');\n }\n\n var isSubscribed = true;\n ensureCanMutateNextListeners();\n nextListeners.push(listener);\n return function unsubscribe() {\n if (!isSubscribed) {\n return;\n }\n\n if (isDispatching) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(6) : 'You may not unsubscribe from a store listener while the reducer is executing. ' + 'See https://redux.js.org/api/store#subscribelistener for more details.');\n }\n\n isSubscribed = false;\n ensureCanMutateNextListeners();\n var index = nextListeners.indexOf(listener);\n nextListeners.splice(index, 1);\n currentListeners = null;\n };\n }\n /**\n * Dispatches an action. It is the only way to trigger a state change.\n *\n * The `reducer` function, used to create the store, will be called with the\n * current state tree and the given `action`. Its return value will\n * be considered the **next** state of the tree, and the change listeners\n * will be notified.\n *\n * The base implementation only supports plain object actions. If you want to\n * dispatch a Promise, an Observable, a thunk, or something else, you need to\n * wrap your store creating function into the corresponding middleware. For\n * example, see the documentation for the `redux-thunk` package. Even the\n * middleware will eventually dispatch plain object actions using this method.\n *\n * @param {Object} action A plain object representing “what changed”. It is\n * a good idea to keep actions serializable so you can record and replay user\n * sessions, or use the time travelling `redux-devtools`. An action must have\n * a `type` property which may not be `undefined`. It is a good idea to use\n * string constants for action types.\n *\n * @returns {Object} For convenience, the same action object you dispatched.\n *\n * Note that, if you use a custom middleware, it may wrap `dispatch()` to\n * return something else (for example, a Promise you can await).\n */\n\n\n function dispatch(action) {\n if (!isPlainObject(action)) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(7) : \"Actions must be plain objects. Instead, the actual type was: '\" + kindOf(action) + \"'. You may need to add middleware to your store setup to handle dispatching other values, such as 'redux-thunk' to handle dispatching functions. See https://redux.js.org/tutorials/fundamentals/part-4-store#middleware and https://redux.js.org/tutorials/fundamentals/part-6-async-logic#using-the-redux-thunk-middleware for examples.\");\n }\n\n if (typeof action.type === 'undefined') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(8) : 'Actions may not have an undefined \"type\" property. You may have misspelled an action type string constant.');\n }\n\n if (isDispatching) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(9) : 'Reducers may not dispatch actions.');\n }\n\n try {\n isDispatching = true;\n currentState = currentReducer(currentState, action);\n } finally {\n isDispatching = false;\n }\n\n var listeners = currentListeners = nextListeners;\n\n for (var i = 0; i < listeners.length; i++) {\n var listener = listeners[i];\n listener();\n }\n\n return action;\n }\n /**\n * Replaces the reducer currently used by the store to calculate the state.\n *\n * You might need this if your app implements code splitting and you want to\n * load some of the reducers dynamically. You might also need this if you\n * implement a hot reloading mechanism for Redux.\n *\n * @param {Function} nextReducer The reducer for the store to use instead.\n * @returns {void}\n */\n\n\n function replaceReducer(nextReducer) {\n if (typeof nextReducer !== 'function') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(10) : \"Expected the nextReducer to be a function. Instead, received: '\" + kindOf(nextReducer));\n }\n\n currentReducer = nextReducer; // This action has a similiar effect to ActionTypes.INIT.\n // Any reducers that existed in both the new and old rootReducer\n // will receive the previous state. This effectively populates\n // the new state tree with any relevant data from the old one.\n\n dispatch({\n type: ActionTypes.REPLACE\n });\n }\n /**\n * Interoperability point for observable/reactive libraries.\n * @returns {observable} A minimal observable of state changes.\n * For more information, see the observable proposal:\n * https://github.com/tc39/proposal-observable\n */\n\n\n function observable() {\n var _ref;\n\n var outerSubscribe = subscribe;\n return _ref = {\n /**\n * The minimal observable subscription method.\n * @param {Object} observer Any object that can be used as an observer.\n * The observer object should have a `next` method.\n * @returns {subscription} An object with an `unsubscribe` method that can\n * be used to unsubscribe the observable from the store, and prevent further\n * emission of values from the observable.\n */\n subscribe: function subscribe(observer) {\n if (typeof observer !== 'object' || observer === null) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(11) : \"Expected the observer to be an object. Instead, received: '\" + kindOf(observer) + \"'\");\n }\n\n function observeState() {\n if (observer.next) {\n observer.next(getState());\n }\n }\n\n observeState();\n var unsubscribe = outerSubscribe(observeState);\n return {\n unsubscribe: unsubscribe\n };\n }\n }, _ref[$$observable] = function () {\n return this;\n }, _ref;\n } // When a store is created, an \"INIT\" action is dispatched so that every\n // reducer returns their initial state. This effectively populates\n // the initial state tree.\n\n\n dispatch({\n type: ActionTypes.INIT\n });\n return _ref2 = {\n dispatch: dispatch,\n subscribe: subscribe,\n getState: getState,\n replaceReducer: replaceReducer\n }, _ref2[$$observable] = observable, _ref2;\n}\n\n/**\n * Prints a warning in the console if it exists.\n *\n * @param {String} message The warning message.\n * @returns {void}\n */\nfunction warning(message) {\n /* eslint-disable no-console */\n if (typeof console !== 'undefined' && typeof console.error === 'function') {\n console.error(message);\n }\n /* eslint-enable no-console */\n\n\n try {\n // This error was thrown as a convenience so that if you enable\n // \"break on all exceptions\" in your console,\n // it would pause the execution at this line.\n throw new Error(message);\n } catch (e) {} // eslint-disable-line no-empty\n\n}\n\nfunction getUnexpectedStateShapeWarningMessage(inputState, reducers, action, unexpectedKeyCache) {\n var reducerKeys = Object.keys(reducers);\n var argumentName = action && action.type === ActionTypes.INIT ? 'preloadedState argument passed to createStore' : 'previous state received by the reducer';\n\n if (reducerKeys.length === 0) {\n return 'Store does not have a valid reducer. Make sure the argument passed ' + 'to combineReducers is an object whose values are reducers.';\n }\n\n if (!isPlainObject(inputState)) {\n return \"The \" + argumentName + \" has unexpected type of \\\"\" + kindOf(inputState) + \"\\\". Expected argument to be an object with the following \" + (\"keys: \\\"\" + reducerKeys.join('\", \"') + \"\\\"\");\n }\n\n var unexpectedKeys = Object.keys(inputState).filter(function (key) {\n return !reducers.hasOwnProperty(key) && !unexpectedKeyCache[key];\n });\n unexpectedKeys.forEach(function (key) {\n unexpectedKeyCache[key] = true;\n });\n if (action && action.type === ActionTypes.REPLACE) return;\n\n if (unexpectedKeys.length > 0) {\n return \"Unexpected \" + (unexpectedKeys.length > 1 ? 'keys' : 'key') + \" \" + (\"\\\"\" + unexpectedKeys.join('\", \"') + \"\\\" found in \" + argumentName + \". \") + \"Expected to find one of the known reducer keys instead: \" + (\"\\\"\" + reducerKeys.join('\", \"') + \"\\\". Unexpected keys will be ignored.\");\n }\n}\n\nfunction assertReducerShape(reducers) {\n Object.keys(reducers).forEach(function (key) {\n var reducer = reducers[key];\n var initialState = reducer(undefined, {\n type: ActionTypes.INIT\n });\n\n if (typeof initialState === 'undefined') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(12) : \"The slice reducer for key \\\"\" + key + \"\\\" returned undefined during initialization. \" + \"If the state passed to the reducer is undefined, you must \" + \"explicitly return the initial state. The initial state may \" + \"not be undefined. If you don't want to set a value for this reducer, \" + \"you can use null instead of undefined.\");\n }\n\n if (typeof reducer(undefined, {\n type: ActionTypes.PROBE_UNKNOWN_ACTION()\n }) === 'undefined') {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(13) : \"The slice reducer for key \\\"\" + key + \"\\\" returned undefined when probed with a random type. \" + (\"Don't try to handle '\" + ActionTypes.INIT + \"' or other actions in \\\"redux/*\\\" \") + \"namespace. They are considered private. Instead, you must return the \" + \"current state for any unknown actions, unless it is undefined, \" + \"in which case you must return the initial state, regardless of the \" + \"action type. The initial state may not be undefined, but can be null.\");\n }\n });\n}\n/**\n * Turns an object whose values are different reducer functions, into a single\n * reducer function. It will call every child reducer, and gather their results\n * into a single state object, whose keys correspond to the keys of the passed\n * reducer functions.\n *\n * @param {Object} reducers An object whose values correspond to different\n * reducer functions that need to be combined into one. One handy way to obtain\n * it is to use ES6 `import * as reducers` syntax. The reducers may never return\n * undefined for any action. Instead, they should return their initial state\n * if the state passed to them was undefined, and the current state for any\n * unrecognized action.\n *\n * @returns {Function} A reducer function that invokes every reducer inside the\n * passed object, and builds a state object with the same shape.\n */\n\n\nfunction combineReducers(reducers) {\n var reducerKeys = Object.keys(reducers);\n var finalReducers = {};\n\n for (var i = 0; i < reducerKeys.length; i++) {\n var key = reducerKeys[i];\n\n if (process.env.NODE_ENV !== 'production') {\n if (typeof reducers[key] === 'undefined') {\n warning(\"No reducer provided for key \\\"\" + key + \"\\\"\");\n }\n }\n\n if (typeof reducers[key] === 'function') {\n finalReducers[key] = reducers[key];\n }\n }\n\n var finalReducerKeys = Object.keys(finalReducers); // This is used to make sure we don't warn about the same\n // keys multiple times.\n\n var unexpectedKeyCache;\n\n if (process.env.NODE_ENV !== 'production') {\n unexpectedKeyCache = {};\n }\n\n var shapeAssertionError;\n\n try {\n assertReducerShape(finalReducers);\n } catch (e) {\n shapeAssertionError = e;\n }\n\n return function combination(state, action) {\n if (state === void 0) {\n state = {};\n }\n\n if (shapeAssertionError) {\n throw shapeAssertionError;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n var warningMessage = getUnexpectedStateShapeWarningMessage(state, finalReducers, action, unexpectedKeyCache);\n\n if (warningMessage) {\n warning(warningMessage);\n }\n }\n\n var hasChanged = false;\n var nextState = {};\n\n for (var _i = 0; _i < finalReducerKeys.length; _i++) {\n var _key = finalReducerKeys[_i];\n var reducer = finalReducers[_key];\n var previousStateForKey = state[_key];\n var nextStateForKey = reducer(previousStateForKey, action);\n\n if (typeof nextStateForKey === 'undefined') {\n var actionType = action && action.type;\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(14) : \"When called with an action of type \" + (actionType ? \"\\\"\" + String(actionType) + \"\\\"\" : '(unknown type)') + \", the slice reducer for key \\\"\" + _key + \"\\\" returned undefined. \" + \"To ignore an action, you must explicitly return the previous state. \" + \"If you want this reducer to hold no value, you can return null instead of undefined.\");\n }\n\n nextState[_key] = nextStateForKey;\n hasChanged = hasChanged || nextStateForKey !== previousStateForKey;\n }\n\n hasChanged = hasChanged || finalReducerKeys.length !== Object.keys(state).length;\n return hasChanged ? nextState : state;\n };\n}\n\nfunction bindActionCreator(actionCreator, dispatch) {\n return function () {\n return dispatch(actionCreator.apply(this, arguments));\n };\n}\n/**\n * Turns an object whose values are action creators, into an object with the\n * same keys, but with every function wrapped into a `dispatch` call so they\n * may be invoked directly. This is just a convenience method, as you can call\n * `store.dispatch(MyActionCreators.doSomething())` yourself just fine.\n *\n * For convenience, you can also pass an action creator as the first argument,\n * and get a dispatch wrapped function in return.\n *\n * @param {Function|Object} actionCreators An object whose values are action\n * creator functions. One handy way to obtain it is to use ES6 `import * as`\n * syntax. You may also pass a single function.\n *\n * @param {Function} dispatch The `dispatch` function available on your Redux\n * store.\n *\n * @returns {Function|Object} The object mimicking the original object, but with\n * every action creator wrapped into the `dispatch` call. If you passed a\n * function as `actionCreators`, the return value will also be a single\n * function.\n */\n\n\nfunction bindActionCreators(actionCreators, dispatch) {\n if (typeof actionCreators === 'function') {\n return bindActionCreator(actionCreators, dispatch);\n }\n\n if (typeof actionCreators !== 'object' || actionCreators === null) {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(16) : \"bindActionCreators expected an object or a function, but instead received: '\" + kindOf(actionCreators) + \"'. \" + \"Did you write \\\"import ActionCreators from\\\" instead of \\\"import * as ActionCreators from\\\"?\");\n }\n\n var boundActionCreators = {};\n\n for (var key in actionCreators) {\n var actionCreator = actionCreators[key];\n\n if (typeof actionCreator === 'function') {\n boundActionCreators[key] = bindActionCreator(actionCreator, dispatch);\n }\n }\n\n return boundActionCreators;\n}\n\n/**\n * Composes single-argument functions from right to left. The rightmost\n * function can take multiple arguments as it provides the signature for\n * the resulting composite function.\n *\n * @param {...Function} funcs The functions to compose.\n * @returns {Function} A function obtained by composing the argument functions\n * from right to left. For example, compose(f, g, h) is identical to doing\n * (...args) => f(g(h(...args))).\n */\nfunction compose() {\n for (var _len = arguments.length, funcs = new Array(_len), _key = 0; _key < _len; _key++) {\n funcs[_key] = arguments[_key];\n }\n\n if (funcs.length === 0) {\n return function (arg) {\n return arg;\n };\n }\n\n if (funcs.length === 1) {\n return funcs[0];\n }\n\n return funcs.reduce(function (a, b) {\n return function () {\n return a(b.apply(void 0, arguments));\n };\n });\n}\n\n/**\n * Creates a store enhancer that applies middleware to the dispatch method\n * of the Redux store. This is handy for a variety of tasks, such as expressing\n * asynchronous actions in a concise manner, or logging every action payload.\n *\n * See `redux-thunk` package as an example of the Redux middleware.\n *\n * Because middleware is potentially asynchronous, this should be the first\n * store enhancer in the composition chain.\n *\n * Note that each middleware will be given the `dispatch` and `getState` functions\n * as named arguments.\n *\n * @param {...Function} middlewares The middleware chain to be applied.\n * @returns {Function} A store enhancer applying the middleware.\n */\n\nfunction applyMiddleware() {\n for (var _len = arguments.length, middlewares = new Array(_len), _key = 0; _key < _len; _key++) {\n middlewares[_key] = arguments[_key];\n }\n\n return function (createStore) {\n return function () {\n var store = createStore.apply(void 0, arguments);\n\n var _dispatch = function dispatch() {\n throw new Error(process.env.NODE_ENV === \"production\" ? formatProdErrorMessage(15) : 'Dispatching while constructing your middleware is not allowed. ' + 'Other middleware would not be applied to this dispatch.');\n };\n\n var middlewareAPI = {\n getState: store.getState,\n dispatch: function dispatch() {\n return _dispatch.apply(void 0, arguments);\n }\n };\n var chain = middlewares.map(function (middleware) {\n return middleware(middlewareAPI);\n });\n _dispatch = compose.apply(void 0, chain)(store.dispatch);\n return _objectSpread(_objectSpread({}, store), {}, {\n dispatch: _dispatch\n });\n };\n };\n}\n\n/*\n * This is a dummy function to check if the function name has been altered by minification.\n * If the function has been minified and NODE_ENV !== 'production', warn the user.\n */\n\nfunction isCrushed() {}\n\nif (process.env.NODE_ENV !== 'production' && typeof isCrushed.name === 'string' && isCrushed.name !== 'isCrushed') {\n warning('You are currently using minified code outside of NODE_ENV === \"production\". ' + 'This means that you are running a slower development build of Redux. ' + 'You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify ' + 'or setting mode to production in webpack (https://webpack.js.org/concepts/mode/) ' + 'to ensure you have the correct code for your production build.');\n}\n\nexport { ActionTypes as __DO_NOT_USE__ActionTypes, applyMiddleware, bindActionCreators, combineReducers, compose, createStore };\n","import devWarning, { resetWarned } from \"rc-util/es/warning\";\nexport { resetWarned };\nexport default (function (valid, component, message) {\n devWarning(valid, \"[antd: \".concat(component, \"] \").concat(message));\n});","export default function requiredArgs(required, args) {\n if (args.length < required) {\n throw new TypeError(required + ' argument' + (required > 1 ? 's' : '') + ' required, but only ' + args.length + ' present');\n }\n}","/**\n * @license\n * Lodash \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %> ');\n * compiled({ 'value': '