Run results for: jQuery hasClass vs vanilla JS classList.contains

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; M2103K19G) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Mobile Safari/537.36 OPR/64.1.3282.59829

Browser: Opera Mobile 64

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Vanilla JS classList.contains

1.1M/s

jQuery hasClass

313K/s

View exact numbers

Test name	Executions per second
✓ Vanilla JS classList.contains	1,103,353 Ops/sec
jQuery hasClass	313,181 Ops/sec

HTML Preparation code:

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

Tests:

jQuery hasClass
$("#el").hasClass("test");
Vanilla JS classList.contains
document.getElementById("el").classList.contains("test");