Run results for: setAttribute vs style

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 Firefox/129.0

Browser: Firefox 129

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

style

80/s

setAttribute

50/s

View exact numbers

Test name	Executions per second
✓ style	80 Ops/sec
setAttribute	50 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"; }