Run results for: offsetTop vs getBoundingClientRect

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

offsetTop

13.9M/s

getBoundingClientRect

4.2M/s

View exact numbers

Test name	Executions per second
✓ offsetTop	13,918,734 Ops/sec
getBoundingClientRect	4,207,346 Ops/sec

HTML Preparation code:

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

Script Preparation code:

var test = document.getElementById('test');

Tests: