Run results for: getElementByClassName vs querySelector

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Goanna/6.8 PaleMoon/34.0.1

Browser: Pale Moon (Firefox Variant) 34

Operating system: Linux

Device Platform: Desktop

Date tested: 5 months ago

getElementById

6.1M/s

querySelector

2.8M/s

View exact numbers

Test name	Executions per second
✓ getElementById	6,069,149 Ops/sec
querySelector	2,790,425 Ops/sec

HTML Preparation code:

<div class="my-id"></div>

Tests: