function cloneSO(obj) { // Handle the 3 simple types, and null or undefined if (null == obj || "object" != typeof obj) return obj; // Handle Date if (obj instanceof Date) { var copy = new Date(); copy.setTime(obj.getTime()); return copy; } // Handle Array if (obj instanceof Array) { var copy = []; for (var i = 0, len = obj.length; i < len; i++) { copy[i] = cloneSO(obj[i]); } return copy; } // Handle Object if (obj instanceof Object) { var copy = {}; for (var attr in obj) { if (obj.hasOwnProperty(attr)) copy[attr] = cloneSO(obj[attr]); } return copy; } throw new Error("Unable to copy obj! Its type isn't supported."); } Bang = (function () { let def = {}; def.constructor = function (self) { self.foo1 = 15; self.foo2 = 'testing'; self.foo3 = { i: 1, am: 2, a: 3, literal: 4}; self.foo4 = self.foo2 + self.foo1; }; def.doFoo1 = function (self) { return self.foo2; }; def.doFoo2 = function (self) { self.foo += 1; return self.foo1; }; return function () { let self = {}; def.constructor(self); return { doFoo1: def.doFoo1.bind(null, self), doFoo2: def.doFoo2.bind(null, self) }; }; })(); preBang = Bang(); function Foo() { let self = {}; /**************************************************************************** * Properties ***************************************************************************/ self.foo1 = 15; self.foo2 = 'testing'; self.foo3 = { i: 1, am: 2, a: 3, literal: 4 }; self.foo4 = null; /**************************************************************************** * Methods ***************************************************************************/ self.constructor = function () { self.foo4 = self.foo2 + self.foo1; } self.doFoo1 = function () { return self.foo2; } self.doFoo2 = function () { self.foo1 += 1; return self.foo1; } /**************************************************************************** * Public Exports ***************************************************************************/ self.public = { doFoo1: self.doFoo1, doFoo2: self.doFoo2 } self.constructor(); return self.public; } preFoo = Foo(); function Bar() { this._foo1 = 15; this._foo2 = 'testing'; this._foo3 = { i: 1, am: 2, a: 3, literal: 4 }; this._foo4 = this._foo2 + this._foo1; } Bar.prototype.doFoo1 = function () { return this._foo2; } Bar.prototype.doFoo2 = function () { this._foo1 += 1; return this._foo1; } preBar = new Bar();