Run results for: className vs setAttribute vs classList

Run details:

User agent: Mozilla/5.0 (Linux; Android 6.0.1; SM-G532MT) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.99 Mobile Safari/537.36

Browser: Chrome Mobile 80

Operating system: Android 6.0.1

Device Platform: Mobile

Date tested: 3 years ago

HTML Preparation code:

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

Script Preparation code:

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

Tests:

className
var i = 1000; while (i--) { element.className = "bar"; }
setAttribute
var i = 1000; while (i--) { element.setAttribute("class", "bar"); }
classList
var i = 1000; while (i--) { element.classList.add("bar"); }