how to convert an array of objects to a collection of objects in javascript

Question

I hope I'm asking the right question.

I have an array like this:

var arr = [{item: 1}, {item: 2}, {item: 3}];

I need to convert it to an object collection that looks like this:

{item1: {item: 1}, item2:{item:2}, item3:{item:3}}

Is there an easy way to do this?

As others have said - that's not valid, but why do you think you need an object that looks like that? Are you trying to use it with another method you read about? — CambridgeMike, Nov 12 '14 at 17:28
And this is where you explain *why* you (feel that you) have to convert your array of objects to an object of objects... — David Thomas, Nov 12 '14 at 17:29
@CurlyFro I think you mean something like this: {item: 1, item: 2, item: 3} — ianaya89, Nov 12 '14 at 17:29
i see my mistake. the result should like like this: {item1: {item: 1}, item2:{item:2}, item3:{item:3}}. thanks — CurlyFro, Nov 12 '14 at 17:31
Duplicate: http://stackoverflow.com/questions/4215737/convert-array-to-object — j-u-s-t-i-n, Nov 12 '14 at 17:38
@CurlyFro: What would you need that for? This is a really odd format. — Bergi, Nov 12 '14 at 17:57

score 0 · Accepted Answer · answered Nov 12 '14 at 17:58

Just loop over arr and add the objects to an object.

var arr = [{item: 1}, {item: 2}, {item: 3}];
var obj = {};

for(var i = 0, len = arr.length; i < len; i++){
    obj['item'+i] = arr[i];
}

I'd suggest leaving this structure as an array unless you have a reason to have it be an object.

1 Answers1