Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36
Chrome 66
Windows
Desktop
6 years ago
Test name Executions per second
querySelector 1198187.2 Ops/sec
getElementById 1920799.1 Ops/sec
HTML Preparation code:
AخA
 
1
<html>
2
  <body>
3
    <div id="test2"></div>
4
    <div id="test"></div>
5
  </body>
6
</html>
Tests:
  • querySelector

     
    document.querySelector("#test");
  • getElementById

     
    document.getElementById("test");