← Back
Editing: isWeakMap.js
var getTag = require('./_getTag'), isObjectLike = require('./isObjectLike'); /** `Object#toString` result references. */ var weakMapTag = '[object WeakMap]'; /** Detect free variable `globalThis` */ const freeGlobalThis = typeof globalThis == 'object' && globalThis !== null && globalThis.Object == Object && globalThis; /** * 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;
Save File
Cancel