Run results for: setAttribute vs style.cssText

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.3

Device Platform: Mobile

Date tested: 8 months ago

Test name	Executions per second
setAttribute	119.0 Ops/sec
style	90.9 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.cssText = `width: ${i}px; height: ${i}px;`; }