Benchmark: clear html element children

HTML Preparation code:

<div id='x'></div>

Script Preparation code:

const root = document.getElementById('x');

for (let i = 0; i < 100; i++) {
	let notRoot = document.createElement('div')
    notRoot.innerHTML = `the rainbow eats sunlight under jupiter's moonlight ${Math.random()}`;
	root.appendChild(notRoot);
}

Tests:

innerHTML
const root = document.getElementById('x').cloneNode(true); root.innerHTML = '';
removeChild firstChild
const root = document.getElementById('x').cloneNode(true); while (root.firstChild) root.removeChild(root.firstChild);
removeChild lastChild
const root = document.getElementById('x').cloneNode(true); while (root.lastChild) root.removeChild(root.lastChild);
textContent
const root = document.getElementById('x').cloneNode(true); root.textContent = '';

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
innerHTML
removeChild firstChild
removeChild lastChild
textContent

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Browser/OS: Chrome 104 on Windows

View result in a separate tab

Test name	Executions per second
innerHTML	10131.4 Ops/sec
removeChild firstChild	6893.2 Ops/sec
removeChild lastChild	6915.7 Ops/sec
textContent	11305.0 Ops/sec

clear html element children (version: 1)

Comparing performance of: innerHTML vs removeChild firstChild vs removeChild lastChild vs textContent

Created: 4 years ago by: Registered User

Jump to the latest result

innerHTML

removeChild firstChild

removeChild lastChild

textContent

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A