Run results for: jQuery Id selector vs Document.getElementById vs Document.querySelector

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.75 Safari/537.36

Browser: Chrome 77

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

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:

Vanilla JS
var el = document.getElementById('testElement'); var className = el.className;
Vanilla JS querySelector
var el = document.querySelector('#testElement'); var className = el.className;
jQuery
var el = $('#testElement'); var className = el.className;