Run results for: setAttribute vs classList.add

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 YaBrowser/24.7.0.0 Safari/537.36

Browser: Yandex Browser 24

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

setAttribute

3.6M/s

classList.add

2.8M/s

View exact numbers

Test name	Executions per second
✓ setAttribute	3,640,392 Ops/sec
classList.add	2,781,681 Ops/sec

HTML Preparation code:

<div id="test">Testing</div>

Script Preparation code:

var el = document.getElementById('test');

Tests: