* Replaces all `placeholder` elements in `array` with an internal placeholder * and returns an array of their indexes. * * @private *

* Converts `value` to a finite number. * * @static * @memberOf _ * @since 4.12.0 * @category Lang * @param {*} val

* The base implementation of `_.clamp` which doesn't coerce arguments. * * @private * @param {number} number The number to clamp.

* The base implementation of `_.forOwn` without support for iteratee shorthands. * * @private * @param {Object} object The object to

* Returns a function to use in pseudos for positionals * @param {Function} fn

* Gets the native function at `key` of `object`. * * @private * @param {Object} object The object to query. * @param {string}

* Checks if `value` is classified as a `Function` object. * * @static * @memberOf _ * @since 0.1.0 * @category Lang

* Converts `func` to its source code. * * @private * @param {Function} func The function to convert. * @returns {string} Retur

* The base implementation of `_.get` without support for default values. * * @private * @param {Object} object The object to query.

* Creates a function like `_.assign`. * * @private * @param {Function} assigner The function to assign values. * @returns {Fun

* Creates a function like `_.camelCase`. * * @private * @param {Function} callback The function to combine each word. * @retur

* Gets the argument placeholder value for `func`. * * @private * @param {Function} func The function to inspect. * @returns {*

* Checks if `string` contains Unicode symbols. * * @private * @param {string} string The string to inspect. * @returns {boolean} Retur

* Creates an array of the own and inherited enumerable property names of `object`. * * **Note:** Non-object values are coerced to objects.

* Gets the number of symbols in `string`. * * @private * @param {string} string The string to inspect. * @returns {number} Returns the

* A specialized version of `_.filter` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The

* The base implementation of methods like `_.difference` without support * for excluding multiple arrays or iteratee shorthands. * *

* The base implementation of `_.indexOf` without `fromIndex` bounds checks. * * @private * @param {Array} array The array to inspect.

* Creates a function that produces an instance of `Ctor` regardless of * whether it was invoked as part of a `new` expression or by `call` or `a

* 此模块用于修复语言的底层缺陷

* 此模块用于修复语言的底层缺陷

* Checks if `value` is likely a prototype object. * * @private * @param {*} value The value to check. * @returns {boolean} Ret

* A specialized version of `_.reduce` for arrays without support for * iteratee shorthands. * * @private * @param {Array} [array] The

* Assigns `value` to `key` of `object` if the existing value is not equivalent * using [`SameValueZero`](http://ecma-international.org/ecma-262/

* Gets the index at which the `key` is found in `array` of key-value pairs. * * @private * @param {Array} array The array to inspect

* The base implementation of methods like `_.max` and `_.min` which accepts a * `comparator` to determine the extremum value. * * @p

* The base implementation of `_.findIndex` and `_.findLastIndex` without * support for iteratee shorthands. * * @private * @param {Arr

* The base implementation of `_.functions` which creates an array of * `object` function property names filtered from `props`. * * @

* The base implementation of `_.invoke` without support for individual * method arguments. * * @private * @param {Object} obje

* The base implementation of `_.isEqual` which supports partial comparisons * and tracks traversed objects. * * @private * @pa