Run results for: querySelector vs getElementsByTagName

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

getElementsByTagName

11.4M/s

querySelector

5.6M/s

View exact numbers

Test name	Executions per second
✓ getElementsByTagName	11,423,591 Ops/sec
querySelector	5,610,828 Ops/sec

HTML Preparation code:

<div></div>

Tests: