access parent object in javascript

Question

    var user = {         Name: "Some user",         Methods: {             ShowGreetings: function() {                     // at this point i want to access variable "Name",                      //i dont want to use user.Name                     // **please suggest me how??**                  },             GetUserName: function() { }         }     } 

Answer 1

You can't.

There is no upwards relationship in JavaScript.

Take for example:

var foo = {     bar: [1,2,3] }  var baz = {}; baz.bar = foo.bar; 

The single array object now has two "parents".

What you could do is something like:

var User = function User(name) {     this.name = name; };  User.prototype = {}; User.prototype.ShowGreetings = function () {     alert(this.name); };  var user = new User('For Example'); user.ShowGreetings(); 

Answer 2

var user = {     Name: "Some user",     Methods: {         ShowGreetings: function() {             alert(this.Parent.Name); // "this" is the Methods object         },         GetUserName: function() { }     },     Init: function() {         this.Methods.Parent = this; // it allows the Methods object to know who its Parent is         delete this.Init; // if you don't need the Init method anymore after the you instanced the object you can remove it         return this; // it gives back the object itself to instance it     } }.Init();