Benchmark: Traverse function vs NodeIterator vs TreeWalker for TEXT nodes

Script Preparation code:

// language=HTML
const html = `
    <!-- article out start -->
    <article>
        <!-- article in start -->
        <h1>Lorem ipsum</h1>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p>
        <!-- article in end -->
    </article>
    <!-- article out end -->

    <!-- article out start -->
    <article>
        <!-- article in start -->
        <h1>Lorem ipsum</h1>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p>
        <!-- article in end -->
    </article>
    <!-- article out end -->

    <!-- article out start -->
    <article>
        <!-- article in start -->
        <h1>Lorem ipsum</h1>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cumque, nostrum.</p>
        <!-- article in end -->
    </article>
    <!-- article out end -->
`;
const template = document.createElement('template');
template.innerHTML = html;

window.testTemplate = template;

window.testTraverse = function traverse(node, use) {
    if (!node) return;

    use(node);
    traverse(node.firstChild, use);
    traverse(node.nextSibling, use);
}

Tests:

Traverse function
const textNodes = []; testTraverse(testTemplate.content.firstChild, node => { if (node.nodeType === Node.SHOW_TEXT) { textNodes.push(node); } });
NodeIterator
const nodeIterator = document.createNodeIterator( testTemplate.content, NodeFilter.SHOW_TEXT ); const textNodes = []; while (nodeIterator.nextNode()) { textNodes.push(nodeIterator.currentNode); }
TreeWalker
const treeWalker = document.createTreeWalker( testTemplate.content, NodeFilter.SHOW_TEXT ); const textNodes = []; while (treeWalker.nextNode()) { textNodes.push(treeWalker.currentNode); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Traverse function
NodeIterator
TreeWalker

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/114.0

Browser/OS: Firefox 114 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Traverse function	236338.8 Ops/sec
NodeIterator	464425.3 Ops/sec
TreeWalker	305889.8 Ops/sec

Traverse function vs NodeIterator vs TreeWalker for TEXT nodes (version: 0)

Let's compare the speed of 3 different ways to traverse the DOM.

Comparing performance of: Traverse function vs NodeIterator vs TreeWalker

Created: one year ago by: Guest

Jump to the latest result

Traverse function

NodeIterator

TreeWalker

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A