Overriding Object.create method in JavaScript

Question

if I create an object in JavaScript like so:

var foo = {
create: function(){}
}

will that overwrite the Object.create function?

No, it won't. And no, you definitely may not do that anyway. Why are you asking? — Bergi, Feb 18 '15 at 00:17
related: [Why is it Object.defineProperty() rather than this.defineProperty()](http://stackoverflow.com/q/13239317/1048572) — Bergi, Aug 05 '15 at 04:13

score 4 · Accepted Answer · answered Feb 18 '15 at 00:19

4

No, it won't.

The object that you create will have a create method, i.e. foo.create, but the Object object still has its own create function.

Note that the Object.create function isn't in Object.prototype.create i.e. it's not a method that exists in any object that is created, it only exists as a property of the Object function object.

answered Feb 18 '15 at 00:19

Guffa

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It can also be accessed using the constructor of an object like `foo.constructor.create(foo)` – jungy Feb 18 '15 at 00:24
@jungy: That depends so much on `foo` that this shouldn't be used. – Bergi Feb 18 '15 at 00:28
@Bergi Yes, I totally agree it shouldn't used. I just don't want people to assume that a constructor and instance are the same thing. – jungy Feb 18 '15 at 00:38

score 1 · Answer 2 · answered Feb 18 '15 at 00:15

1

No, because create is a property of foo.

For backward compatible Object.create:

if(!Object.create){
  Object.create = function(o){
    function F(){}; F.prototype = o;
    return new F;
  }
}

answered Feb 18 '15 at 00:15

StackSlave

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Overriding Object.create method in JavaScript

2 Answers2