Benchmark: querySelector from document or from element

HTML Preparation code:

<html>

<body>
    <div>
        <div>
            <div>
                <div class="element">
                    <div class="test"></div>
                </div>
            </div>
        </div>
    </div>
</body>

</html>

Script Preparation code:

window.element = document.querySelector('.element');

Tests:

querySelector from document
const theHtml = document.querySelector('.test');
querySelector from element
const theHtml = element.querySelector('.test');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
querySelector from document
querySelector from element

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Windows

View result in a separate tab

Test name	Executions per second
querySelector from document	3871086.0 Ops/sec
querySelector from element	5430846.0 Ops/sec

querySelector from document or from element (version: 0)

Figuring out what's faster, using querySelector from document or from an element closer to the wanted element

Comparing performance of: querySelector from document vs querySelector from element

Created: 3 years ago by: Guest

Jump to the latest result

querySelector from document

querySelector from element

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A