MeasureThat.net

Run results for: getElementById vs querySelector vs getElementsByTagName pt. 2

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36
Chrome 86
Windows
Desktop
4 years ago
Test name Executions per second
getElementById 4622688.0 Ops/sec
querySelector element ID 2721293.2 Ops/sec
querySelector tag name 3049260.0 Ops/sec
getElementsByTagName 2341283.5 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="testElement"></div>
Tests:

  • getElementById

     
    var el = document.getElementById('testElement');
    var className = el.className;

  • querySelector element ID

     
    var el = document.querySelector('#testElement');
    var className = el.className;

  • querySelector tag name

     
    var el = document.querySelector('div');
    var className = el.className;

  • getElementsByTagName

     
    var el = document.getElementsByTagName('div');
    var className = el.className;