Run results for: querySelector on HTML tag vs. closest

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

getting the html tag with closest

6.9M/s

getting the html tag with querySelector

4.6M/s

View exact numbers

Test name	Executions per second
✓ getting the html tag with closest	6,915,708 Ops/sec
getting the html tag with querySelector	4,564,749 Ops/sec

HTML Preparation code:

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

Script Preparation code:

window.theDiv = document.querySelector('#test');

Tests:

getting the html tag with querySelector
const theHtml = document.querySelector('html');
getting the html tag with closest
const theHtml = theDiv.closest('html')

Run results for: querySelector on HTML tag vs. closest

Figuring out what's faster, to querySelect the HTML tag or use the javascript closest

getting the html tag with querySelector

getting the html tag with closest