| 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; |
