CODEWITHSUNDEEP
javascriptjson
CodeMonkey
CodeMonkey

Reputation: 2295

Converting JSON to an array

I have a variable that contains the following JSON string:

{
    "0" : "Jun 20, 2012 03:02 PM",
    "1" : "Jun 20, 2012 03:26 PM",
    "2" : "Jun 21, 2012 01:12 PM",
    "3" : "Jun 21, 2012 01:25 PM",
    "4" : "Jun 21, 2012 02:42 PM",
    "5" : "Jun 21, 2012 02:43 PM",
    "6" : "NULL"
}

I wish to convert this JSON to an array in javascript such that array[0] has "Jun 20, 2012 03:02 PM" array[1] has "Jun 20, 2012 03:26 PM" and so on.

Upvotes: 2

Views: 297

Answers (3)

Cameron Martin
Cameron Martin

Reputation: 6010

You must parse your JSON string into a javascript object first.

JavaScript

var object = JSON.parse(JSONString);

To polyfill browsers without JSON support: http://bestiejs.github.com/json3/

Then, convert that object to an array:

JavaScript

var arr = [];
for(var i in object) {
    if(object.hasOwnProperty(i)) {
        arr.push(object[i]);
    }
}

jQuery 

var arr = $.map(obj,function(value){ return value; });

Fiddle: http://jsfiddle.net/iambriansreed/MD3pF/

Note: Since the original poster did not mention jQuery it is worth mentioning that loading jQuery for only these instances isn't worthwhile, and you would be better off using the pure JavaScript if you aren't already using jQuery.

Upvotes: 5

CodeMonkey
CodeMonkey

Reputation: 2295

var currentVersion = {/literal} {$displayedVersion} {literal}; var jsonObj = eval('(' + {/literal}{$json}{literal} + ')');

Upvotes: 0

Wyatt Anderson
Wyatt Anderson

Reputation: 9913

Alternatively, if you're targeting ES5 and above:

// myObject = { '0': 'a', '1': 'b' };
var myArray = Object.keys(myObject).map(function(key) { return myObject[key]; });
// myArray = [ 'a', 'b' ];

Upvotes: 2

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