MeasureThat.net

Run results for: QuerySelector vs QuerySelectorAll vs getElementsByClassName

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:71.0) Gecko/20100101 Firefox/71.0
Firefox 71
Mac OS X 10.14
Desktop
5 years ago
Test name Executions per second
querySelector 3509539.8 Ops/sec
querySelectorAll 1452667.1 Ops/sec
getElementsByClassName 5708999.0 Ops/sec
HTML Preparation code:
AخA
 
1
<div class="test"></div>
Tests:

  • querySelector

     
    document.querySelector(".test")

  • querySelectorAll

     
    document.querySelectorAll(".test")

  • getElementsByClassName

     
    document.getElementsByClassName(".test")