MeasureThat.net

Run results for: getElementById vs querySelector

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Firefox 59
Windows 7
Other
6 years ago
Test name Executions per second
getElementById 3250763.8 Ops/sec
querySelector 2438238.8 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="testElement"></div>
Tests:

  • getElementById

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

  • querySelector

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