Run results for: document getElementsByTagName vs querySelectorAll

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:144.0) Gecko/20100101 Firefox/144.0

Browser: Firefox 144

Operating system: Windows

Device Platform: Desktop

Date tested: 9 months ago

getElementsByTagName

5.5M/s

querySelectorAll

1.2M/s

View exact numbers

Test name	Executions per second
✓ getElementsByTagName	5,507,490 Ops/sec
querySelectorAll	1,153,435 Ops/sec

HTML Preparation code:

<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>

Tests: