$.each vs $.map on getting object keys

Benchmark created on October 18, 2013

Preparation HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Setup

var obj = {};
    for (var i = 0; i < 1000; ++i) {
        obj['index-' + i] = Math.random(100000, 999999);
    }

Test runner

var keys = [];
$.each(obj, function(k, v) {
    keys.push(k);
});

var keys = $.map(obj, function(v, k) {
    return k;
});

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published on October 18, 2013