Run results for: window.getComputedStyle vs. getBoundingClientRect

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:105.0) Gecko/105.0 Firefox/105.0

Browser: Firefox Mobile 105

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
getComputedStyle	64.3 Ops/sec
getBoundingClientRect	102.5 Ops/sec

HTML Preparation code:

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

Tests:

getComputedStyle
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return window.getComputedStyle(document.getElementById(id), null).getPropertyValue("display") === "none"; }
getBoundingClientRect
var i = 5000; while (i--) { checkDisplay('foo'); } function checkDisplay(id) { return document.getElementById(id).getBoundingClientRect().width === 0; }