Run results for: NodeIterator - filter function vs nextNode state check

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36

Browser: Chrome 92

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
nextNode	456426.4 Ops/sec
filter	200063.2 Ops/sec

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;

Tests:

nextNode
const nodeIterator = document.createNodeIterator( testTemplate.content, NodeFilter.SHOW_ALL ); while (nodeIterator.nextNode()) { let node = nodeIterator.referenceNode; if(node.textContent.includes('Lorem')) { node.textContent = "Lorem"; } }
filter
const nodeIterator = document.createNodeIterator( testTemplate.content, NodeFilter.SHOW_ALL, { acceptNode(node) { return node.textContent.includes('Lorem'); } } ); while (nodeIterator.nextNode()) { let node = nodeIterator.referenceNode; node.textContent = "Lorem"; }