Run results for: querySelector vs getElementsByTagName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

getElementsByTagName

64.6M/s

querySelector

38.4M/s

View exact numbers

Test name	Executions per second
✓ getElementsByTagName	64,622,212 Ops/sec
querySelector	38,428,944 Ops/sec

HTML Preparation code:

<div></div>

Tests: