Benchmark: TreeWalker vs querySelectorAll vs NodeIterator + filter HTMLElement

HTML Preparation code:

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<article>
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  <h1>Lorem ipsum</h1>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p>
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</article>
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<article>
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  <h1>Lorem ipsum</h1>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p>
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</article>
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Tests:

TreeWalker
const treeWalker = document.createTreeWalker( document.body, NodeFilter.SHOW_ELEMENT, ); const list = []; let element; while (element = treeWalker.nextNode()) { list.push(element); } const elements = list.filter(el => el instanceof HTMLElement);
querySelectorAll
const elements = Array.from(document.body.querySelectorAll('*')).filter(node => node instanceof HTMLElement);
NodeIterator
const nodeIterator = document.createNodeIterator( document.body, NodeFilter.SHOW_ELEMENT, ); const list = []; let element; while (element = nodeIterator.nextNode()) { list.push(element); } const elements = list.filter(el => el instanceof HTMLElement);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
TreeWalker
querySelectorAll
NodeIterator

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser/OS: Chrome 142 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
TreeWalker	1421613.4 Ops/sec
querySelectorAll	632164.2 Ops/sec
NodeIterator	1008794.5 Ops/sec

Related benchmarks:

TreeWalker vs querySelectorAll vs NodeIterator + filter HTMLElement (version: 7)

Comparing performance of: TreeWalker vs querySelectorAll vs NodeIterator

Created: 4 years ago by: Registered User

Jump to the latest result

TreeWalker

querySelectorAll

NodeIterator

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A