MeasureThat.net

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

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0
Firefox 121
Windows
Desktop
one year ago
Test name Executions per second
querySelector 2103275.0 Ops/sec
querySelectorAll 1053677.4 Ops/sec
getElementsByClassName 4962323.0 Ops/sec
querySelector (ID) 2531601.8 Ops/sec
getElementsByID 4887820.0 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")