Implement Object.is() method

[HalidOdat]

ECMASCript feature
Implement the Object.is() method, the is method uses the SameValue algorithm (implementation is here)

The builtin Object functions are here, after implementing it should be added to Object here like defineProperty

Example code

Object.is('foo', 'foo');     // true

Object.is('foo', 'bar');     // false
Object.is([], []);           // false

var foo = { a: 1 };
var bar = { a: 1 };
Object.is(foo, foo);         // true
Object.is(foo, bar);         // false

Object.is(null, null);       // true

// Special Cases
Object.is(0, -0);            // false
Object.is(-0, -0);           // true
Object.is(NaN, 0/0);         // true

More information:

• ECMAScript Specification
• MDN

[tylermorten]

I could probably tackle this one. Do we need it to work in “strict” mode as well?