Cache selectors

JavaScript performance comparison

Test case created by josh

Preparation code

<script src=""></script>

<div class="textwidget"><div class="extendoBox">
<!--<h6>Online Training for Business</h6>
<p><h5>&bull; Quickly create compelling courses with your content</h5></p>
<p><h5>&bull; Increase training efficiency and reduce costs</h5></p>
<p><h5>&bull;  Easily evaluate the impact of training on business success</h5></p>-->

<h6>Online Training Made Easy</h6>
<p>Create Courses Quickly
<br>Save Time and Money
<br>Measure Results</p>

<a href="/sign-up">Sign up for free trial</a>
<p style="font-size: 11px; font-style: italic; margin: -17px 0 -27px 0; height: 65px; padding-left:50px;">No Credit Card Required</p>
<div id="testDiv"></div>
<a href="javascript:void(0)" role="button" class="play">Watch and learn more</a>
<!--<a href="javascript:void(0)" role="button" class="play">Watch this two-minute video to see how to make training easier and more productive</a>-->
<div id="videoModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
                <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
                <div id="sh-wrapper">

Preparation code output

Online Training Made Easy

Create Courses Quickly
Save Time and Money
Measure Results

Sign up for free trial

No Credit Card Required

Test runner

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Java applet disabled.

Testing in unknown unknown
Test Ops/sec
No caching
var i = 10;

while (i) {
With caching
var i = 10;
var testDiv = $('#testDiv');

while (i) {

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