Run results for: querySelector vs getElementsByClassName on multiple elements

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
querySelector	4339279.0 Ops/sec
getElementsByClassName	5661417.5 Ops/sec

HTML Preparation code:

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

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

Tests:

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