Run results for: JS: append vs appendChild multiple elements

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.0.1

Device Platform: Mobile

Date tested: one year ago

append

482K/s

appendChild

440K/s

View exact numbers

Test name	Executions per second
✓ append	482,301 Ops/sec
appendChild	439,619 Ops/sec

HTML Preparation code:

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

Script Preparation code:

var container = document.getElementById("container");
var paragraph = document.createElement("p");
var paragraph1 = document.createElement("p");
var paragraph2 = document.createElement("p");
var paragraph3 = document.createElement("p");

Tests:

append
container.append(paragraph,paragraph1,paragraph2,paragraph3);
appendChild
container.appendChild(paragraph); container.appendChild(paragraph1); container.appendChild(paragraph2); container.appendChild(paragraph3);