Run results for: offsetTop pref

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

offsetTop

19.6M/s

getBoundingClientRect

5.7M/s

View exact numbers

Test name	Executions per second
✓ offsetTop	19,632,770 Ops/sec
getBoundingClientRect	5,713,930 Ops/sec

HTML Preparation code:

<div id="el">
  <h2>Lorem ipsum dolor sit amet</h2>
</div>

Script Preparation code:

var el = document.getElementById("el");

Tests: