Run results for: querySelector vs getElementById

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
querySelector	2436021.5 Ops/sec
getElementById	3311596.5 Ops/sec

HTML Preparation code:

<html>
  <body>
    <div id="test2"></div>
    <div id="test"></div>
  </body>
</html>

AخA
 
<html>
  <body>
    <div id="test2"></div>
    <div id="test"></div>
  </body>
</html>

Tests:

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