Javascript Object Properties accessing technique

Question

I am a bit of new to Javascript and I had a bit of confusion. Now for a Javascript object as the one below:

var obj = {
    value:null
    };
obj[value] = 2;

The above code would give me an error at line 2.

But if replace it as below

obj.value = 2;

it would work. Can some one tell me the issue behind why this happens.

It should be `obj["value"]=2` – Sandeep Nayak Aug 22 '16 at 06:56 — Sandeep Nayak, Aug 22 '16 at 06:56
Vote to close as typographycal error. – Marcos Pérez Gude Aug 22 '16 at 06:59 — Marcos Pérez Gude, Aug 22 '16 at 06:59

score 0 · Answer 1 · edited Aug 22 '16 at 06:59

0

You should use obj["value"] = 2 like below

var obj = { value: null };

obj["value"] = 2;

console.log(obj);

edited Aug 22 '16 at 06:59

Nhan

answered Aug 22 '16 at 06:58

Sandeep Nayak

score 0 · Answer 2 · answered Aug 22 '16 at 06:58

0

You need to place "" around the value.

var obj = {
     value:null
     };
obj["value"] = 2;

answered Aug 22 '16 at 06:58

2 Answers2