Object Comparison in Javascript [Duplicate]

Question

What is the best way to compare objects in JavaScript?

Example:

var user1 = {name : "nerd", org: "dev"};
var user2 = {name : "nerd", org: "dev"};
var eq = user1 == user2;
alert(eq); // gives false

I know that two objects are equal if they refer to the exact same object, but is there a way to check if they have the same attributes' values?

The following way works for me, but is it the only possibility?

var eq = Object.toJSON(user1) == Object.toJSON(user2);
alert(eq); // gives true

Accepted Answer

Unfortunately there is no perfect way, unless you use _proto_ recursively and access all non-enumerable properties, but this works in Firefox only.

So the best I can do is to guess usage scenarios.

1) Fast and limited.

Works when you have simple JSON-style objects without methods and DOM nodes inside:

 JSON.stringify(obj1) === JSON.stringify(obj2)

The ORDER of the properties IS IMPORTANT, so this method will return false for following objects:

 x = {a: 1, b: 2};
 y = {b: 2, a: 1};