jQuery parent/child selectors

JavaScript performance comparison

Revision 43 of this test case created

Info

The different ways to select (context, pure selector, +find()) DOM elements using jQuery in parent/child scenarios.

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<div>
  <ul id="list">
    <li class="test">
    </li>
    <li>
    </li>
    <li class="test">
    </li>
    <li class="test">
    </li>
    <li>
    </li>
    <li class="test">
    </li>
    <li>
    </li>
    <li class="test">
    </li>
    <li>
    </li>
    <li class="test">
    </li>
  </ul>
</div>
<div class="test">
</div>
<script>
  var list = document.getElementById('list');
</script>

Preparation code output

Test runner

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

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
context
var list = document.getElementById('list');
var $test = $('.test', list);
pending…
selector
var $test = $('.test', '#list');
pending…
context and find()
var list = document.getElementById('list');
var $test = $(list).find('.test');
pending…
#list
var $test = $('#list').find('.test');
pending…
$list
var $list = $('#list');
var $test = $list.find('.test');
pending…

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:

0 comments

Add a comment