id tag class

JavaScript performance comparison

Test case created by ywq

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<style>
.red{background-color:red}
</style>
<div><a></a></div>
<div><a></a></div>
<div id="wrap">
<div class="red"></div>
<div id="head class="red"><a id="a1"></a></div>
<div id="content" class="red"></div>
<div id="foot"></div>
</div>

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
class
var e=$(".red")
pending…
div class
var e=$("div .red")
pending…
id class
var e=$("#wrap .red")
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