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Run results for:
innerHTML vs insertAdjacentHTML vs createContextualFragment long HTML strings repeat 10
innerHTML vs insertAdjacentHTML vs createContextualFragment: Incrementally append long HTML strings.
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<iframe src="https://measurethat.net/Embed?id=604443" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
createContextualFragment
31/s
insertAdjacentHTML
29/s
innerHTML
0/s
View exact numbers
Test name
Executions per second
✓
createContextualFragment
31 Ops/sec
insertAdjacentHTML
29 Ops/sec
innerHTML
0 Ops/sec
HTML Preparation code:
<div id='id'></div>
Script Preparation code:
// Change these numbers to see how well they scale batch = 1000; repeat = 10;
Tests:
innerHTML
const box = document.getElementsByTagName("div").item(0); let html = ''; for (let i = 0; i < batch; i++) html += '<div class="a b"><div>Test</div></div>'; for (let i = 0; i < repeat; i++) box.innerHTML += html;
insertAdjacentHTML
const box = document.getElementsByTagName("div").item(0); let html = ''; for (let i = 0; i < batch; i++) html += '<div class="a b"><div>Test</div></div>'; for (let i = 0; i < repeat; i++) box.insertAdjacentHTML('beforeend', html);
createContextualFragment
const box = document.getElementsByTagName("div").item(0); let html = ''; for (let i = 0; i < batch; i++) html += '<div class="a b"><div>Test</div></div>'; for (let i = 0; i < repeat; i++) { const range = document.createRange(); range.selectNode(box); const documentFragment = range.createContextualFragment(html); box.appendChild(documentFragment); }