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Run results for:
querySelector vs getElementsByClassName with destructuring assignment vs getElementsByClassName get first element
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<iframe src="https://measurethat.net/Embed?id=593768" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
querySelector
26744934.0 Ops/sec
getElementsByClassName with destructuring assignment
15505136.0 Ops/sec
getElementsByClassName get first element
21259350.0 Ops/sec
HTML Preparation code:
<div class="test" id="test"></div>
Tests:
querySelector
/*When writing async/deferred tests, use `deferred.resolve()` to mark test as done*/ const testElement = document.querySelector(".test");
getElementsByClassName with destructuring assignment
const [testElement] = document.getElementsByClassName(".test");
getElementsByClassName get first element
const testElement = document.getElementsByClassName(".test")[0];