Run results for: window.getComputedStyle vs. className

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6,2 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.7

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
getComputedStyle	310.0 Ops/sec
className	1146.3 Ops/sec

HTML Preparation code:

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

Tests:

getComputedStyle
var i = 3000; while (i--) { chekele('foo'); } function chekele(element) { return window.getComputedStyle(document.getElementById(element), null).getPropertyValue("display").indexOf('none') === -1; }
className
var i = 3000; while (i--) { chekele('foo'); } function chekele(element) { return document.getElementById(element).className.indexOf('hide') === -1; }