Run results for: getBoundingClientRect vs offsetLeft

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

getBoundingClientRect

1.1M/s

offsetLeft

860K/s

View exact numbers

Test name	Executions per second
✓ getBoundingClientRect	1,116,944 Ops/sec
offsetLeft	859,688 Ops/sec

HTML Preparation code:

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

Tests:

getBoundingClientRect
let element = document.getElementById('test'); let rect = element.getBoundingClientRect(); let left = rect.left;
offsetLeft
let element = document.getElementById('test'); let left = element.offsetLeft