Run results for: jQuery addClass vs classList.add (only measure add)

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 11_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.0 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 11

Operating system: iOS 11.4.1

Device Platform: Mobile

Date tested: 6 years ago

Test name	Executions per second
jQuery addClass	508516.7 Ops/sec
Javascript classList.add	2205244.0 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");
var $el = $("#el");
var el = document.getElementById("el");

Tests: