Run results for: jQuery addClass vs classList.add

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

jQuery addClass

800K/s

Javascript classList.add

703K/s

View exact numbers

Test name	Executions per second
✓ jQuery addClass	799,656 Ops/sec
Javascript classList.add	702,632 Ops/sec

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<div id="el"></div>

Script Preparation code:

document.getElementById("el").classList.remove("test");

Tests: