Run results for: querySelector vs getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SAMSUNG SM-G977N) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/11.2 Chrome/75.0.3770.143 Mobile Safari/537.36

Browser: Chrome Mobile 75

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
querySelector	1418443.2 Ops/sec
getElementsByClassName	2016470.2 Ops/sec

HTML Preparation code:

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

Tests:

querySelector
document.querySelector(".test")
getElementsByClassName
document.getElementsByClassName(".test")