| var getTag = require('./_getTag'), | |
| isObjectLike = require('./isObjectLike'); | |
| /** `Object#toString` result references. */ | |
| var weakMapTag = '[object WeakMap]'; | |
| /** | |
| * Checks if `value` is classified as a `WeakMap` object. | |
| * | |
| * @static | |
| * @memberOf _ | |
| * @since 4.3.0 | |
| * @category Lang | |
| * @param {*} value The value to check. | |
| * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. | |
| * @example | |
| * | |
| * _.isWeakMap(new WeakMap); | |
| * // => true | |
| * | |
| * _.isWeakMap(new Map); | |
| * // => false | |
| */ | |
| function isWeakMap(value) { | |
| return isObjectLike(value) && getTag(value) == weakMapTag; | |
| } | |
| module.exports = isWeakMap; |