YUI v3.4.1 vs. jQuery v1.7.4 DOM queries

JavaScript performance comparison

Revision 6 of this test case created by Mauno

Preparation code

<script src="http://yui.yahooapis.com/3.4.1/build/yui/yui-min.js">
<script src="http://code.jquery.com/jquery-1.7.min.js">
<div id="test">
  <div class="testlink">
    <a href="#" id="linkone" title="test">test link</a>
  <div class="testmenu">
      <li class="menuitem itemone">
        <a href="#" title="item 1">menu item 1</a>
      <li class="menuitem itemtwo">
        <a href="#" title="item 2">menu item 2</a>
      <li class="menuitem itemthree">
        not clickable item 3
  var selectors = ['body', 'div', 'body div', 'div a', 'div > a', 'div[class^=test]', 'div, li, a', '.menuitem', 'li.menuitem', '#linkone', 'div#test', 'a[title*=item]', 'a[title=test]', 'li:nth-child(even)', 'li:nth-child(odd)', 'li:last-child', 'li:first-child'];

Preparation code output

Test runner

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Testing in unknown unknown
Test Ops/sec
jQuery v1.7
for (var sel in selectors) {
YUI v3.4.1
YUI().use('node', function(Y) {
  for (var sel in selectors) {

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CTPAx commented :

Test is not objective. Look, for YUI test code part every iteration executing YUI().use('node'), which is creating new YUI instance with own namespase and make request to yui CDN for loading "node" module.

So, you can imagine how many time it tooks to create instance and make request to receive answer from CDN...

13thbit commented :

I bit late perhaps but ... Regardless whether the comment by CTPAx is true or not, you should have commented. Does he have a point or not?

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