Run results for: querySelector vs getElementById

Run details:

User agent: Mozilla/5.0 (Android 7.1.2; Tablet; rv:61.0) Gecko/61.0 Firefox/61.0

Browser: Android 7

Operating system: Android 7.1.2

Device Platform: Tablet

Date tested: 6 years ago

Test name	Executions per second
querySelector	257845.2 Ops/sec
getElementById	610866.2 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");