Run results for: offsetTop vs getBoundingClientRect

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

offsetTop

6.3M/s

getBoundingClientRect

2.0M/s

View exact numbers

Test name	Executions per second
✓ offsetTop	6,280,628 Ops/sec
getBoundingClientRect	2,033,982 Ops/sec

HTML Preparation code:

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

Script Preparation code:

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

Tests: