Run results for: document.body.getElementsByClassName vs document.getElementsByClassName

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

querySelector

8.5M/s

Direct access

7.1M/s

View exact numbers

Test name	Executions per second
✓ querySelector	8,498,825 Ops/sec
Direct access	7,138,627 Ops/sec

HTML Preparation code:

<!DOCTYPE html>
<html lang="ru">
<head>
</head>
<body>
  <div class="aap">AAP</div>
</body>
</html>

Tests: