Benchmark: Traverse function vs NodeIterator vs TreeWalker (swh)

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, nodeType, use) {
    while (node) {
      if (nodeType === node.nodeType)
        use(node);
      traverse(node.firstChild, use);
      node = node.nextSibling;
    }
}

Tests:

Traverse function
const comments = []; testTraverse(testTemplate.content.firstChild, Node.COMMENT_NODE, node => { comments.push(node); });
NodeIterator with filter param
const nodeIterator = document.createNodeIterator( testTemplate.content, NodeFilter.SHOW_COMMENT ); const comments = []; while (nodeIterator.nextNode()) { comments.push(nodeIterator.currentNode); }
TreeWalker with filter param
const treeWalker = document.createTreeWalker( testTemplate.content, NodeFilter.SHOW_COMMENT ); const comments = []; while (treeWalker.nextNode()) { comments.push(treeWalker.currentNode); }
Traverse filter function
const comments = []; testTraverse(testTemplate.content.firstChild, Node.COMMENT_NODE, node => { comments.push(node); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Traverse function
NodeIterator with filter param
TreeWalker with filter param
Traverse filter function

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36

Browser/OS: Chrome 95 on Linux

View result in a separate tab

Test name	Executions per second
Traverse function	254092.6 Ops/sec
NodeIterator with filter param	807644.8 Ops/sec
TreeWalker with filter param	926657.6 Ops/sec
Traverse filter function	250235.7 Ops/sec

Traverse function vs NodeIterator vs TreeWalker (swh) (version: 0)

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

Comparing performance of: Traverse function vs NodeIterator with filter param vs TreeWalker with filter param vs Traverse filter function

Created: 2 years ago by: Guest

Jump to the latest result

Traverse function

NodeIterator with filter param

TreeWalker with filter param

Traverse filter function

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A