jQuery vs. document.querySelector

JavaScript performance comparison

Revision 45 of this test case created by

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/prototype/1/prototype.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/mootools/1.3/mootools-yui-compressed.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/yui/2.9.0/build/yuiloader/yuiloader-min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/dojo/1/dojo/dojo.xd.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/ext-core/3/ext-core.js"></script>
<div id="main">
  <ul class="gallery">
    <li>
      Hello World
    </li>
    <li>
      Hello World
    </li>
    <li>
      Hello World
    </li>
    <li>
      Hello World
    </li>
    <li>
      Hello World
    </li>
    <li>
      Hello World
    </li>
  </ul>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

      
<script>
Benchmark.prototype.teardown = function() {
  var el = document.querySelector("#main ul:first-child");
  el.style.display = "list-item";

};
</script>

Preparation code output

<script src="https://ajax.googleapis.com/ajax/libs/mootools/1.3/mootools-yui-compressed.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/yui/2.9.0/build/yuiloader/yuiloader-min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/dojo/1/dojo/dojo.xd.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/ext-core/3/ext-core.js"></script> <div id="main"> <ul class="gallery"> <li> Hello World </li> <li> Hello World </li> <li> Hello World </li> <li> Hello World </li> <li> Hello World </li> <li> Hello World </li> </ul> </div> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
jQuery
$("#main ul:first-child").hide();
pending…
DOM
var el = document.querySelector("#main ul:first-child");
el.style.display = "none";
pending…

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