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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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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=593914" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Android 15; Mobile; rv:136.0) Gecko/136.0 Firefox/136.0
Browser:
Firefox Mobile 136
Operating system:
Android
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
querySelector class
3746736.8 Ops/sec
getElementsByClassName
5951979.5 Ops/sec
getElementById
6026779.0 Ops/sec
querySelector with wildcards
3368481.0 Ops/sec
querySelectorAll with wildcards
1247716.4 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-']");