| /** | |
| * lodash (Custom Build) <https://lodash.com/> | |
| * Build: `lodash modularize exports="npm" -o ./` | |
| * Copyright jQuery Foundation and other contributors <https://jquery.org/> | |
| * Released under MIT license <https://lodash.com/license> | |
| * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> | |
| * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors | |
| */ | |
| /** Used as the `TypeError` message for "Functions" methods. */ | |
| var FUNC_ERROR_TEXT = 'Expected a function'; | |
| /** Used to stand-in for `undefined` hash values. */ | |
| var HASH_UNDEFINED = '__lodash_hash_undefined__'; | |
| /** `Object#toString` result references. */ | |
| var funcTag = '[object Function]', | |
| genTag = '[object GeneratorFunction]'; | |
| /** | |
| * Used to match `RegExp` | |
| * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). | |
| */ | |
| var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; | |
| /** Used to detect host constructors (Safari). */ | |
| var reIsHostCtor = /^\[object .+?Constructor\]$/; | |
| /** Detect free variable `global` from Node.js. */ | |
| var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; | |
| /** Detect free variable `self`. */ | |
| var freeSelf = typeof self == 'object' && self && self.Object === Object && self; | |
| /** Used as a reference to the global object. */ | |
| var root = freeGlobal || freeSelf || Function('return this')(); | |
| /** | |
| * Gets the value at `key` of `object`. | |
| * | |
| * @private | |
| * @param {Object} [object] The object to query. | |
| * @param {string} key The key of the property to get. | |
| * @returns {*} Returns the property value. | |
| */ | |
| function getValue(object, key) { | |
| return object == null ? undefined : object[key]; | |
| } | |
| /** | |
| * Checks if `value` is a host object in IE < 9. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a host object, else `false`. | |
| */ | |
| function isHostObject(value) { | |
| // Many host objects are `Object` objects that can coerce to strings | |
| // despite having improperly defined `toString` methods. | |
| var result = false; | |
| if (value != null && typeof value.toString != 'function') { | |
| try { | |
| result = !!(value + ''); | |
| } catch (e) {} | |
| } | |
| return result; | |
| } | |
| /** Used for built-in method references. */ | |
| var arrayProto = Array.prototype, | |
| funcProto = Function.prototype, | |
| objectProto = Object.prototype; | |
| /** Used to detect overreaching core-js shims. */ | |
| var coreJsData = root['__core-js_shared__']; | |
| /** Used to detect methods masquerading as native. */ | |
| var maskSrcKey = (function() { | |
| var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); | |
| return uid ? ('Symbol(src)_1.' + uid) : ''; | |
| }()); | |
| /** Used to resolve the decompiled source of functions. */ | |
| var funcToString = funcProto.toString; | |
| /** Used to check objects for own properties. */ | |
| var hasOwnProperty = objectProto.hasOwnProperty; | |
| /** | |
| * Used to resolve the | |
| * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) | |
| * of values. | |
| */ | |
| var objectToString = objectProto.toString; | |
| /** Used to detect if a method is native. */ | |
| var reIsNative = RegExp('^' + | |
| funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') | |
| .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' | |
| ); | |
| /** Built-in value references. */ | |
| var splice = arrayProto.splice; | |
| /* Built-in method references that are verified to be native. */ | |
| var Map = getNative(root, 'Map'), | |
| nativeCreate = getNative(Object, 'create'); | |
| /** | |
| * Creates a hash object. | |
| * | |
| * @private | |
| * @constructor | |
| * @param {Array} [entries] The key-value pairs to cache. | |
| */ | |
| function Hash(entries) { | |
| var index = -1, | |
| length = entries ? entries.length : 0; | |
| this.clear(); | |
| while (++index < length) { | |
| var entry = entries[index]; | |
| this.set(entry[0], entry[1]); | |
| } | |
| } | |
| /** | |
| * Removes all key-value entries from the hash. | |
| * | |
| * @private | |
| * @name clear | |
| * @memberOf Hash | |
| */ | |
| function hashClear() { | |
| this.__data__ = nativeCreate ? nativeCreate(null) : {}; | |
| } | |
| /** | |
| * Removes `key` and its value from the hash. | |
| * | |
| * @private | |
| * @name delete | |
| * @memberOf Hash | |
| * @param {Object} hash The hash to modify. | |
| * @param {string} key The key of the value to remove. | |
| * @returns {boolean} Returns `true` if the entry was removed, else `false`. | |
| */ | |
| function hashDelete(key) { | |
| return this.has(key) && delete this.__data__[key]; | |
| } | |
| /** | |
| * Gets the hash value for `key`. | |
| * | |
| * @private | |
| * @name get | |
| * @memberOf Hash | |
| * @param {string} key The key of the value to get. | |
| * @returns {*} Returns the entry value. | |
| */ | |
| function hashGet(key) { | |
| var data = this.__data__; | |
| if (nativeCreate) { | |
| var result = data[key]; | |
| return result === HASH_UNDEFINED ? undefined : result; | |
| } | |
| return hasOwnProperty.call(data, key) ? data[key] : undefined; | |
| } | |
| /** | |
| * Checks if a hash value for `key` exists. | |
| * | |
| * @private | |
| * @name has | |
| * @memberOf Hash | |
| * @param {string} key The key of the entry to check. | |
| * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | |
| */ | |
| function hashHas(key) { | |
| var data = this.__data__; | |
| return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key); | |
| } | |
| /** | |
| * Sets the hash `key` to `value`. | |
| * | |
| * @private | |
| * @name set | |
| * @memberOf Hash | |
| * @param {string} key The key of the value to set. | |
| * @param {*} value The value to set. | |
| * @returns {Object} Returns the hash instance. | |
| */ | |
| function hashSet(key, value) { | |
| var data = this.__data__; | |
| data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; | |
| return this; | |
| } | |
| // Add methods to `Hash`. | |
| Hash.prototype.clear = hashClear; | |
| Hash.prototype['delete'] = hashDelete; | |
| Hash.prototype.get = hashGet; | |
| Hash.prototype.has = hashHas; | |
| Hash.prototype.set = hashSet; | |
| /** | |
| * Creates an list cache object. | |
| * | |
| * @private | |
| * @constructor | |
| * @param {Array} [entries] The key-value pairs to cache. | |
| */ | |
| function ListCache(entries) { | |
| var index = -1, | |
| length = entries ? entries.length : 0; | |
| this.clear(); | |
| while (++index < length) { | |
| var entry = entries[index]; | |
| this.set(entry[0], entry[1]); | |
| } | |
| } | |
| /** | |
| * Removes all key-value entries from the list cache. | |
| * | |
| * @private | |
| * @name clear | |
| * @memberOf ListCache | |
| */ | |
| function listCacheClear() { | |
| this.__data__ = []; | |
| } | |
| /** | |
| * Removes `key` and its value from the list cache. | |
| * | |
| * @private | |
| * @name delete | |
| * @memberOf ListCache | |
| * @param {string} key The key of the value to remove. | |
| * @returns {boolean} Returns `true` if the entry was removed, else `false`. | |
| */ | |
| function listCacheDelete(key) { | |
| var data = this.__data__, | |
| index = assocIndexOf(data, key); | |
| if (index < 0) { | |
| return false; | |
| } | |
| var lastIndex = data.length - 1; | |
| if (index == lastIndex) { | |
| data.pop(); | |
| } else { | |
| splice.call(data, index, 1); | |
| } | |
| return true; | |
| } | |
| /** | |
| * Gets the list cache value for `key`. | |
| * | |
| * @private | |
| * @name get | |
| * @memberOf ListCache | |
| * @param {string} key The key of the value to get. | |
| * @returns {*} Returns the entry value. | |
| */ | |
| function listCacheGet(key) { | |
| var data = this.__data__, | |
| index = assocIndexOf(data, key); | |
| return index < 0 ? undefined : data[index][1]; | |
| } | |
| /** | |
| * Checks if a list cache value for `key` exists. | |
| * | |
| * @private | |
| * @name has | |
| * @memberOf ListCache | |
| * @param {string} key The key of the entry to check. | |
| * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | |
| */ | |
| function listCacheHas(key) { | |
| return assocIndexOf(this.__data__, key) > -1; | |
| } | |
| /** | |
| * Sets the list cache `key` to `value`. | |
| * | |
| * @private | |
| * @name set | |
| * @memberOf ListCache | |
| * @param {string} key The key of the value to set. | |
| * @param {*} value The value to set. | |
| * @returns {Object} Returns the list cache instance. | |
| */ | |
| function listCacheSet(key, value) { | |
| var data = this.__data__, | |
| index = assocIndexOf(data, key); | |
| if (index < 0) { | |
| data.push([key, value]); | |
| } else { | |
| data[index][1] = value; | |
| } | |
| return this; | |
| } | |
| // Add methods to `ListCache`. | |
| ListCache.prototype.clear = listCacheClear; | |
| ListCache.prototype['delete'] = listCacheDelete; | |
| ListCache.prototype.get = listCacheGet; | |
| ListCache.prototype.has = listCacheHas; | |
| ListCache.prototype.set = listCacheSet; | |
| /** | |
| * Creates a map cache object to store key-value pairs. | |
| * | |
| * @private | |
| * @constructor | |
| * @param {Array} [entries] The key-value pairs to cache. | |
| */ | |
| function MapCache(entries) { | |
| var index = -1, | |
| length = entries ? entries.length : 0; | |
| this.clear(); | |
| while (++index < length) { | |
| var entry = entries[index]; | |
| this.set(entry[0], entry[1]); | |
| } | |
| } | |
| /** | |
| * Removes all key-value entries from the map. | |
| * | |
| * @private | |
| * @name clear | |
| * @memberOf MapCache | |
| */ | |
| function mapCacheClear() { | |
| this.__data__ = { | |
| 'hash': new Hash, | |
| 'map': new (Map || ListCache), | |
| 'string': new Hash | |
| }; | |
| } | |
| /** | |
| * Removes `key` and its value from the map. | |
| * | |
| * @private | |
| * @name delete | |
| * @memberOf MapCache | |
| * @param {string} key The key of the value to remove. | |
| * @returns {boolean} Returns `true` if the entry was removed, else `false`. | |
| */ | |
| function mapCacheDelete(key) { | |
| return getMapData(this, key)['delete'](key); | |
| } | |
| /** | |
| * Gets the map value for `key`. | |
| * | |
| * @private | |
| * @name get | |
| * @memberOf MapCache | |
| * @param {string} key The key of the value to get. | |
| * @returns {*} Returns the entry value. | |
| */ | |
| function mapCacheGet(key) { | |
| return getMapData(this, key).get(key); | |
| } | |
| /** | |
| * Checks if a map value for `key` exists. | |
| * | |
| * @private | |
| * @name has | |
| * @memberOf MapCache | |
| * @param {string} key The key of the entry to check. | |
| * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | |
| */ | |
| function mapCacheHas(key) { | |
| return getMapData(this, key).has(key); | |
| } | |
| /** | |
| * Sets the map `key` to `value`. | |
| * | |
| * @private | |
| * @name set | |
| * @memberOf MapCache | |
| * @param {string} key The key of the value to set. | |
| * @param {*} value The value to set. | |
| * @returns {Object} Returns the map cache instance. | |
| */ | |
| function mapCacheSet(key, value) { | |
| getMapData(this, key).set(key, value); | |
| return this; | |
| } | |
| // Add methods to `MapCache`. | |
| MapCache.prototype.clear = mapCacheClear; | |
| MapCache.prototype['delete'] = mapCacheDelete; | |
| MapCache.prototype.get = mapCacheGet; | |
| MapCache.prototype.has = mapCacheHas; | |
| MapCache.prototype.set = mapCacheSet; | |
| /** | |
| * Gets the index at which the `key` is found in `array` of key-value pairs. | |
| * | |
| * @private | |
| * @param {Array} array The array to inspect. | |
| * @param {*} key The key to search for. | |
| * @returns {number} Returns the index of the matched value, else `-1`. | |
| */ | |
| function assocIndexOf(array, key) { | |
| var length = array.length; | |
| while (length--) { | |
| if (eq(array[length][0], key)) { | |
| return length; | |
| } | |
| } | |
| return -1; | |
| } | |
| /** | |
| * The base implementation of `_.isNative` without bad shim checks. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a native function, | |
| * else `false`. | |
| */ | |
| function baseIsNative(value) { | |
| if (!isObject(value) || isMasked(value)) { | |
| return false; | |
| } | |
| var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor; | |
| return pattern.test(toSource(value)); | |
| } | |
| /** | |
| * Gets the data for `map`. | |
| * | |
| * @private | |
| * @param {Object} map The map to query. | |
| * @param {string} key The reference key. | |
| * @returns {*} Returns the map data. | |
| */ | |
| function getMapData(map, key) { | |
| var data = map.__data__; | |
| return isKeyable(key) | |
| ? data[typeof key == 'string' ? 'string' : 'hash'] | |
| : data.map; | |
| } | |
| /** | |
| * Gets the native function at `key` of `object`. | |
| * | |
| * @private | |
| * @param {Object} object The object to query. | |
| * @param {string} key The key of the method to get. | |
| * @returns {*} Returns the function if it's native, else `undefined`. | |
| */ | |
| function getNative(object, key) { | |
| var value = getValue(object, key); | |
| return baseIsNative(value) ? value : undefined; | |
| } | |
| /** | |
| * Checks if `value` is suitable for use as unique object key. | |
| * | |
| * @private | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is suitable, else `false`. | |
| */ | |
| function isKeyable(value) { | |
| var type = typeof value; | |
| return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') | |
| ? (value !== '__proto__') | |
| : (value === null); | |
| } | |
| /** | |
| * Checks if `func` has its source masked. | |
| * | |
| * @private | |
| * @param {Function} func The function to check. | |
| * @returns {boolean} Returns `true` if `func` is masked, else `false`. | |
| */ | |
| function isMasked(func) { | |
| return !!maskSrcKey && (maskSrcKey in func); | |
| } | |
| /** | |
| * Converts `func` to its source code. | |
| * | |
| * @private | |
| * @param {Function} func The function to process. | |
| * @returns {string} Returns the source code. | |
| */ | |
| function toSource(func) { | |
| if (func != null) { | |
| try { | |
| return funcToString.call(func); | |
| } catch (e) {} | |
| try { | |
| return (func + ''); | |
| } catch (e) {} | |
| } | |
| return ''; | |
| } | |
| /** | |
| * Creates a function that memoizes the result of `func`. If `resolver` is | |
| * provided, it determines the cache key for storing the result based on the | |
| * arguments provided to the memoized function. By default, the first argument | |
| * provided to the memoized function is used as the map cache key. The `func` | |
| * is invoked with the `this` binding of the memoized function. | |
| * | |
| * **Note:** The cache is exposed as the `cache` property on the memoized | |
| * function. Its creation may be customized by replacing the `_.memoize.Cache` | |
| * constructor with one whose instances implement the | |
| * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) | |
| * method interface of `delete`, `get`, `has`, and `set`. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @since 0.1.0 | |
| * @category Function | |
| * @param {Function} func The function to have its output memoized. | |
| * @param {Function} [resolver] The function to resolve the cache key. | |
| * @returns {Function} Returns the new memoized function. | |
| * @example | |
| * | |
| * var object = { 'a': 1, 'b': 2 }; | |
| * var other = { 'c': 3, 'd': 4 }; | |
| * | |
| * var values = _.memoize(_.values); | |
| * values(object); | |
| * // => [1, 2] | |
| * | |
| * values(other); | |
| * // => [3, 4] | |
| * | |
| * object.a = 2; | |
| * values(object); | |
| * // => [1, 2] | |
| * | |
| * // Modify the result cache. | |
| * values.cache.set(object, ['a', 'b']); | |
| * values(object); | |
| * // => ['a', 'b'] | |
| * | |
| * // Replace `_.memoize.Cache`. | |
| * _.memoize.Cache = WeakMap; | |
| */ | |
| function memoize(func, resolver) { | |
| if (typeof func != 'function' || (resolver && typeof resolver != 'function')) { | |
| throw new TypeError(FUNC_ERROR_TEXT); | |
| } | |
| var memoized = function() { | |
| var args = arguments, | |
| key = resolver ? resolver.apply(this, args) : args[0], | |
| cache = memoized.cache; | |
| if (cache.has(key)) { | |
| return cache.get(key); | |
| } | |
| var result = func.apply(this, args); | |
| memoized.cache = cache.set(key, result); | |
| return result; | |
| }; | |
| memoized.cache = new (memoize.Cache || MapCache); | |
| return memoized; | |
| } | |
| // Assign cache to `_.memoize`. | |
| memoize.Cache = MapCache; | |
| /** | |
| * Performs a | |
| * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | |
| * comparison between two values to determine if they are equivalent. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @since 4.0.0 | |
| * @category Lang | |
| * @param {*} value The value to compare. | |
| * @param {*} other The other value to compare. | |
| * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | |
| * @example | |
| * | |
| * var object = { 'a': 1 }; | |
| * var other = { 'a': 1 }; | |
| * | |
| * _.eq(object, object); | |
| * // => true | |
| * | |
| * _.eq(object, other); | |
| * // => false | |
| * | |
| * _.eq('a', 'a'); | |
| * // => true | |
| * | |
| * _.eq('a', Object('a')); | |
| * // => false | |
| * | |
| * _.eq(NaN, NaN); | |
| * // => true | |
| */ | |
| function eq(value, other) { | |
| return value === other || (value !== value && other !== other); | |
| } | |
| /** | |
| * Checks if `value` is classified as a `Function` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @since 0.1.0 | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a function, else `false`. | |
| * @example | |
| * | |
| * _.isFunction(_); | |
| * // => true | |
| * | |
| * _.isFunction(/abc/); | |
| * // => false | |
| */ | |
| function isFunction(value) { | |
| // The use of `Object#toString` avoids issues with the `typeof` operator | |
| // in Safari 8-9 which returns 'object' for typed array and other constructors. | |
| var tag = isObject(value) ? objectToString.call(value) : ''; | |
| return tag == funcTag || tag == genTag; | |
| } | |
| /** | |
| * Checks if `value` is the | |
| * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) | |
| * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @since 0.1.0 | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is an object, else `false`. | |
| * @example | |
| * | |
| * _.isObject({}); | |
| * // => true | |
| * | |
| * _.isObject([1, 2, 3]); | |
| * // => true | |
| * | |
| * _.isObject(_.noop); | |
| * // => true | |
| * | |
| * _.isObject(null); | |
| * // => false | |
| */ | |
| function isObject(value) { | |
| var type = typeof value; | |
| return !!value && (type == 'object' || type == 'function'); | |
| } | |
| module.exports = memoize; | |