How to get the prototype property in Javascript?

Asked Jul 25 '15 at 15:20

Active Jul 25 '15 at 15:23

Viewed 50 times

I define an object using function

AAA = function ( x) {
    this.x = x || 0;
};

Then I created on object using

 var a = new AAA();

If I am using a.prototype, I get "undefined". I can only use AAA.prototype to access the prototype property, I would like to know why?

edited Jul 25 '15 at 15:23

asked Jul 25 '15 at 15:20

Adam Lee

Er, because `a` and `AAA` are different objects and only one of them has a `prototype` property? – melpomene Jul 25 '15 at 15:24
http://yehudakatz.com/2011/08/12/understanding-prototypes-in-javascript/ – Wédney Yuri Jul 25 '15 at 15:25
You are confusing the internal `a.[[Prototype]]` and the non-internal `AAA.prototype` – Oriol Jul 25 '15 at 15:32

0 Answers0