Run results for: Element.append vs Node.appendChild

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.4 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 months ago

Node.appendChild

15K/s

Element.append

14K/s

View exact numbers

Test name	Executions per second
✓ Node.appendChild	14,673 Ops/sec
Element.append	13,793 Ops/sec

HTML Preparation code:

<div id="testDiv"></div>

Script Preparation code:

// async function globalMeasureThatScriptPrepareFunction() {}

Tests:

Element.append
"use strict"; for (let i=0; i<100; i++) { const p = document.createElement("p"); p.textContent = i; testDiv.append(p); } testDiv.innerHTML="";
Node.appendChild
"use strict"; for (let i=0; i<100; i++) { const p = document.createElement("p"); p.textContent = i; testDiv.appendChild(p); } testDiv.innerHTML="";