Fork underscore.js
by Raynos
HTML
<script src="https://github.com/documentcloud/underscore/raw/master/underscore.js"></script>
JavaScript
var object = {
"1": 5,
"2": 1,
"3": 3
};
var sortedObject = _.sortBy(object, function(val, key, object) {
return val;
});
console.log(sortedObject);