Run results for: jQuery by id vs Document.getElementById

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0

Browser: Firefox 57

Operating system: Ubuntu

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
jQuery	2525279.5 Ops/sec
Vanilla JS	2961696.2 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.0.min.js"></script>
<div id="testElement"></div>

Tests:

jQuery
var el = $("#testElement")[0]; var className = el.className;
Vanilla JS
var el = document.getElementById('testElement'); var className = el.className;