Run results for: setAttribute vs style.cssText

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/118.0.5993.92 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 118

Operating system: iOS 17.1

Device Platform: Mobile

Date tested: 2 years ago

style

149/s

setAttribute

135/s

View exact numbers

Test name	Executions per second
✓ style	149 Ops/sec
setAttribute	135 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;`; }