Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementsByClassName

1.9M/s

querySelector

1.3M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	1,874,826 Ops/sec
querySelector	1,320,655 Ops/sec

HTML Preparation code:

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

Tests: