Run results for: setAttribute, classList

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
setAttribute	1943408.0 Ops/sec
classList	1477105.9 Ops/sec

HTML Preparation code:

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

AخA
 
<div id="foo"></div>

Tests:

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