Run results for: getBoundingClientRect vs window.getComputedStyle + new WebKitCSSMatrix

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Windows 7

Device Platform: Desktop

Date tested: 29 days ago

Test name	Executions per second
getBoundingClientRect	977227.1 Ops/sec
window.getComputedStyle + new WebKitCSSMatrix	288132.2 Ops/sec

HTML Preparation code:

<div id="test"></div>

Tests:

getBoundingClientRect
let element = document.getElementById('test'); let rect = element.getBoundingClientRect(); let left = rect.left;
window.getComputedStyle + new WebKitCSSMatrix
let element = document.getElementById('test'); let style = window.getComputedStyle(element); let matrix = new WebKitCSSMatrix(style.transform); let left = matrix.m41;