Run results for: setAttribute vs style

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0

Browser: Firefox Mobile 91

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
setAttribute	10.3 Ops/sec
style	11.0 Ops/sec

HTML Preparation code:

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

Tests:

setAttribute
var element = document.getElementById("foo"); var i = 10000; while (i--) { element.setAttribute("style", "width: "+i+"px; height: "+i+"px;"); }
style
var element = document.getElementById("foo"); var i = 10000; while (i--) { element.style.width = i+"px"; element.style.height = i+"px"; }