Run results for: className vs classListg

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Linux

Device Platform: Desktop

Date tested: 10 months ago

className

5.1M/s

classList

3.2M/s

View exact numbers

Test name	Executions per second
✓ className	5,065,073 Ops/sec
classList	3,228,452 Ops/sec

HTML Preparation code:

<div id="foo"></div>

Tests:

className
var element = document.getElementById("foo"); element.className = "bar ";
classList
var element = document.getElementById("foo"); element.classList.add("bar");