Run results for: className vs. setAttribute vs. classList

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

HTML Preparation code:

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

AخA
 
<div id="foo"></div>

Script Preparation code:

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

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

Tests:

className
element.className = "bar";
element.className = "bar";
setAttribute
element.setAttribute("class", "bar");
element.setAttribute("class", "bar");
classList
element.classList.add("bar");
element.classList.add("bar");