Run results for: window.getComputedStyle vs. className

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:139.0) Gecko/139.0 Firefox/139.0

Browser: Firefox Mobile 139

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

className

610/s

getComputedStyle

120/s

View exact numbers

Test name	Executions per second
✓ className	610 Ops/sec
getComputedStyle	120 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; }