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

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Mobile/15E148 Safari/604.1
Mobile Safari 16
iOS 16.3.1
Mobile
2 years ago
Test name Executions per second
querySelector 3859132.5 Ops/sec
querySelectorAll 2329030.8 Ops/sec
getElementsByClassName 4428486.5 Ops/sec
querySelector (ID) 2798096.2 Ops/sec
getElementsByID 4549522.5 Ops/sec
HTML Preparation code:
AخA
 
1
<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")