How to create javascript object with custom name?

Question

It's a little bit difficult to explain what I need, so I'll use some non-working code:

function createSimpleObjet(name, value){
    return {
        name: value
    };
}

//create it
var obj = createSimpleObject('Message', 'Hello World!');
//test it:
alert(ojb.Message); //should alert 'Hello World!'

How would I go about?

possible duplicate of create object using variables for property name — Felix Kling
– Felix Kling, Commented May 21, 2012 at 10:01
See also Using constants as indices for JavaScript associative arrays. — Asherah
– Asherah, Commented May 21, 2012 at 10:15
Yeah, I see. Really difficult to search where you are looking when one doens't know how do call it :D — Kees C. Bakker
– Kees C. Bakker, Commented May 21, 2012 at 10:29

VisioN · Accepted Answer · 2012-05-21 09:42:41Z

13

In order to do this try square bracket notation:

function createSimpleObject(name, value){
    var obj = {};
    obj[name] = value;
    return obj;
}

answered May 21, 2012 at 9:42

VisioN

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Quentin · Accepted Answer · 2012-05-21 09:42:40Z

4

You can't use a variable as a property name in an object literal. You have to create the object, and then assign the value using square bracket notation.

var object = {};
object[name] = value;

answered May 21, 2012 at 9:42

Quentin

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