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Run results for:
Generic TreeWalker vs querySelectorAll vs getElementsByTagName
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=565357" 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/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
querySelectorAll
10K/s
getElementsByTagName
9K/s
TreeWalker
6K/s
View exact numbers
Test name
Executions per second
✓
querySelectorAll
9,837 Ops/sec
getElementsByTagName
9,395 Ops/sec
TreeWalker
5,745 Ops/sec
HTML Preparation code:
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Script Preparation code:
var root = document.getElementById('custom-elements-wrapper');
Tests:
TreeWalker
const treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT); const collection = []; while (treeWalker.nextNode()) { if (treeWalker.currentNode.nodeName.startsWith('X-')) { collection.push(treeWalker.currentNode); } }
querySelectorAll
const elements = root.querySelectorAll('*'); const collection = []; for (let i = 0, item; (item = elements[i]); i += 1) { if (item.nodeName.startsWith('X-')) { collection.push(item); } }
getElementsByTagName
const elements = root.getElementsByTagName('*'); const collection = []; for (let i = 0, item; (item = elements[i]); i += 1) { if (item.nodeName.startsWith('X-')) { collection.push(item); } }