Run results for: querySelector vs getElementByTagName

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser: Firefox 147

Operating system: Linux

Device Platform: Desktop

Date tested: 5 months ago

getElementByTagName

4.4M/s

querySelector

1.7M/s

View exact numbers

Test name	Executions per second
✓ getElementByTagName	4,359,707 Ops/sec
querySelector	1,674,115 Ops/sec

HTML Preparation code:

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

Tests: