Google
Edit File: clone.js
'use strict' module.exports = clone var getPrototypeOf = Object.getPrototypeOf || function (obj) { return obj.__proto__ } function clone (obj) { if (obj === null || typeof obj !== 'object') return obj if (obj instanceof Object) var copy = { __proto__: getPrototypeOf(obj) } else var copy = Object.create(null) Object.getOwnPropertyNames(obj).forEach(function (key) { Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key)) }) return copy }