Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

getElementsByClassName

12.4M/s

querySelector

7.9M/s

View exact numbers

Test name	Executions per second
✓ getElementsByClassName	12,379,006 Ops/sec
querySelector	7,878,903 Ops/sec

HTML Preparation code:

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

Tests: