Run results for: getElementsByClassName()[0] vs querySelectorAll

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0

Browser: Firefox 152

Operating system: Windows

Device Platform: Desktop

Date tested: 29 days ago

By Class Name

3.6M/s

Query Selector

3.3M/s

View exact numbers

Test name	Executions per second
✓ By Class Name	3,649,404 Ops/sec
Query Selector	3,344,418 Ops/sec

HTML Preparation code:

<div class="test"></div>

Tests: