How do I change a JSON object into an array key/value pairs through code?

Question

from:

{
   'name':'JC',
   'age':22
}

to:

['name':JC,'age':22] //actually, see UPDATE

UPDATE:

...I meant:

[{"name":"JC"},{"age":22}]

That is an invalid array. Did you mean: `["name","JC","age",22]` or `[{"name":"JC"},{"age":22}]`? — Rob W, Mar 07 '12 at 23:41
Yes it is Rob! @Jan: maybe this helps: http://stackoverflow.com/questions/558981/iterating-through-list-of-keys-for-associative-array-in-json — androidavid, Mar 07 '12 at 23:42
To expand on @RobW's point, Javascript does not have associative arrays (like PHP), it uses objects. They have a few key limitations, but work in a very similar way. Maybe it would help to know why you are looking for this type of construct? — Morgon, Mar 07 '12 at 23:43
@RobW: hmm... so if that's the case, how would I do that through code? — Jan Carlo Viray, Mar 07 '12 at 23:45

score 1 · Answer 1 · answered Mar 07 '12 at 23:45

1

If you're trying to convert a JSON string into an object, you can use the built in JSON parser (although not in old browsers like IE7):

JSON.parse("{\"name\":\"JC\", \"age\":22}");

Note that you have to use double quotes for your JSON to be valid.

answered Mar 07 '12 at 23:45

Alex Korban

14,916
5
44
55

score 1 · Accepted Answer · edited Mar 08 '12 at 11:45

1

May be you only want understand how to iterate it:

var obj = { 'name':'JC', 'age':22 };
for (var key in obj)
{
    alert(key + ' ' + obj[key]);
}

Update:
So you create an array as commented:

var obj = { 'name':'JC', 'age':22 };
var obj2 = [];
for (var key in obj)
{
    var element = {};
    element[key] = obj[key]; // Add name-key pair to object
    obj2.push(element);      // Store element in the new list
}

edited Mar 08 '12 at 11:45

Rob W

341,306
83
791
678

answered Mar 07 '12 at 23:48

freedev

25,946
8
108
125

well I want to put it into one BIG array containing many objects.. like [{..},{..}] with one Object per property.. – Jan Carlo Viray Mar 07 '12 at 23:51

score 0 · Answer 3 · answered Mar 07 '12 at 23:42

0

There is no associative array in JavaScript. Object literals are used instead. Your JSON object is such literal already.

answered Mar 07 '12 at 23:42

Marat Tanalin

13,927
1
36
52

How do I change a JSON object into an array key/value pairs through code?

3 Answers3