sort an object based on value in js

Question

I want to sort an object which is associative in terms (key, value) I am able to store the values according to the key, but unable to sort them on the basis of value using in-built sort() functions as in case of associative array.

var usernames = {}; username[1] = "ZNAME"; username[2] = "BNAME"; username[3] = "ANAME"; username[4] = "TNAME"; username[5] = "KNAME"; username[5] = "YNAME"; $.each(usernames,function(key, value){ alert(key + " : " + value); })

Please tell the method to sort with my updated JSFIIDLE

DEMO

Objects have no particular order, you want an array...

elclanrs
– elclanrs

2013-10-14 21:39:46 +00:00
Commented Oct 14, 2013 at 21:39 — elclanrs
– elclanrs, Commented Oct 14, 2013 at 21:39

Christophe · Accepted Answer · 2013-10-15 15:43:43Z

You can't sort an object, you have to make it an array. For example:

var usernamesArray = [ {key:1,username:"ZNAME"}, {key:2,username:"BNAME"}, ... {key:5,username:"YNAME"} ]; var sortedUsernamesArray=usernamesArray.sort(function(a,b){ // return (a.username>b.username)?1:-1; });

Live demo: http://jsfiddle.net/GrD4v/

Note: jQuery is not needed here.

[Edit] There are a couple different ways to build the usernamesArray. A simple one:

var usernamesObject = {}; var usernamesArray = []; usernamesObject[1] = "ZNAME"; usernamesObject[2] = "BNAME"; usernamesObject[3] = "ANAME"; usernamesObject[4] = "TNAME"; usernamesObject[5] = "KNAME"; usernamesObject[6] = "YNAME"; for (var i=1;i<7,i++) { usernamesArray.push({key:i,username:usernamesObject[i]}); }

thanks for the answer, can you please tell how to iterate over usernames to fetch key and username

mayabelle · Accepted Answer · 2013-10-14 21:44:30Z

var username = []; username[0] = "ZNAME"; username[1] = "BNAME"; username[2] = "ANAME"; username[3] = "TNAME"; username[4] = "KNAME"; username[5] = "YNAME"; username.sort(); $.each(username,function(key, value){ alert(key + " : " + value); })

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