Run results for: className vs classListg

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
className	21707038.0 Ops/sec
classList	6493166.0 Ops/sec

HTML Preparation code:

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

AخA
 
<div id="foo"></div>

Tests:

var element = document.getElementById("foo");

	element.className = "bar ";

​x
 
var element = document.getElementById("foo");​    element.className = "bar ";​

var element = document.getElementById("foo");

	element.classList.add("bar");

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