Run results for: innerhtml vs removechild vs remove vs replaceChildren

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.5.1

Device Platform: Mobile

Date tested: 2 years ago

innerHTML

11.5M/s

removeChild

9.2M/s

replaceChildren

6.5M/s

remove

6.4M/s

View exact numbers

Test name	Executions per second
✓ innerHTML	11,491,163 Ops/sec
removeChild	9,226,750 Ops/sec
replaceChildren	6,469,327 Ops/sec
remove	6,425,071 Ops/sec

HTML Preparation code:

<div id="container"></div>

Script Preparation code:

var node = document.getElementById('container');

for(var i = 0; i < 1000; i++) node.appendChild(document.createElement('div'));

Tests:

innerHTML
var node = document.getElementById('container'); node.innerHTML = '';
removeChild
var node = document.getElementById('container'); while(node.firstChild) node.removeChild(node.firstChild)
remove
var node = document.getElementById('container'); while(node.firstChild) node.firstChild.remove()
replaceChildren
var node = document.getElementById('container'); node.replaceChildren();