Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/112.0.5615.46 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 112

Operating system: iOS 16.3

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
querySelector	8411915.0 Ops/sec
querySelectorAll	4727030.0 Ops/sec
getElementsByClassName	10784670.0 Ops/sec
querySelector (ID)	6473475.0 Ops/sec
getElementsByID	10958720.0 Ops/sec

HTML Preparation code:

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

Tests:

querySelector
document.querySelector(".test")
querySelectorAll
document.querySelectorAll(".test")
getElementsByClassName
document.getElementsByClassName(".test")
querySelector (ID)
document.querySelector("#test")
getElementsByID
document.getElementById("test")