Info

See this question: http://stackoverflow.com/questions/10424975/is-it-faster-to-traverse-the-dom-from-a-cached-selector-than-to-find-an-idd-ele

Preparation code

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

<div class="myclass" id="myid">
    <a href="javascript:">Click me!</a>
</div>
<script>
  Benchmark.prototype.setup = function() {
    var link = $('a');
  };
</script>

Preparation code output

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

link.closest('.myclass');

$('#myid');

link.parent();

link.parents('.myclass');

$('.myclass');

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Jason on 3rd May 2012
• Revision 2: published by Jason on 3rd May 2012

0 comments