Run results for: jQuery addClass vs classList.add

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; rv:81.0) Gecko/20100101 Firefox/81.0

Browser: Firefox 81

Operating system: Windows 7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
jQuery addClass	550569.7 Ops/sec
Javascript classList.add	576720.4 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: