Benchmark: Element.append vs Node.appendChild

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="";

Rendered benchmark preparation results:

Previous results

Test case name	Result
Element.append
Node.appendChild

Latest run results:

Run details: (Test run date: 3 months ago)

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/OS: Safari 26 on Mac OS X 10.15.7

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

Element.append vs Node.appendChild (version: 1)