Run results for: jQuery by id vs Document.getElementById

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36

Browser: Chrome 54

Operating system: Windows 7

Device Platform: Other

Date tested: 8 years ago

Test name	Executions per second
jQuery	956464.2 Ops/sec
Vanilla JS	2761890.5 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;