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Run results for:
querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID
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<iframe src="https://measurethat.net/Embed?id=600812" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/135 Version/11.1.1 Safari/605.1.15
Browser:
Safari 11
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
querySelector
6469792.5 Ops/sec
querySelectorAll
13203960.0 Ops/sec
getElementsByClassName
36138536.0 Ops/sec
querySelector (ID)
5115057.5 Ops/sec
getElementsByID
44047176.0 Ops/sec
HTML Preparation code:
<div class="test" id="test"></div>
Tests:
querySelector
document.querySelector(".test")
querySelectorAll
document.querySelectorAll(".test")
getElementsByClassName
document.getElementsByClassName(".test")
querySelector (ID)
document.querySelector("#test")
getElementsByID
document.getElementById("test")