Run results for: innerHTML vs removeChild(node.firstChild) vs removeChild(node.lastChild)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.83 Safari/537.36

Browser: Chrome 99

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
innerHTML	2562257.0 Ops/sec
removeChild(node.firstChild)	5704523.0 Ops/sec
removeChild(node.lastChild)	5713155.0 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(node.firstChild)
var node = document.getElementById('container'); while(node.firstChild) node.removeChild(node.firstChild)
removeChild(node.lastChild)
var node = document.getElementById('container'); while(node.firstChild) node.removeChild(node.lastChild)