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Run results for:
querySelector vs querySelectorAll vs getElementsByClassName when trying to select by group of similar ID elements
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<iframe src="https://measurethat.net/Embed?id=603435" 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/136.0.0.0 Safari/537.36
Browser:
Chrome 136
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
querySelector class
21254566.0 Ops/sec
getElementsByClassName
32187402.0 Ops/sec
getElementById
43989208.0 Ops/sec
querySelector with wildcards
8790021.0 Ops/sec
querySelectorAll with wildcards
2943414.2 Ops/sec
HTML Preparation code:
<div class="test" id="test-1"></div> <div class="test" id="test-2"></div> <div class="test" id="test-3"></div> <div class="test" id="test-4"></div> <div class="test" id="test-5"></div>
Script Preparation code:
/*your preparation JavaScript code goes here To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/ async function globalMeasureThatScriptPrepareFunction() { // This function is optional, feel free to remove it. // await someThing(); }
Tests:
querySelector class
document.querySelector(".test")
getElementsByClassName
document.getElementsByClassName(".test")
getElementById
document.getElementById("#test-1")
querySelector with wildcards
document.querySelector("[id^='test-']");
querySelectorAll with wildcards
document.querySelectorAll("[id^='test-']");