Run results for: JS: append vs appendChild multiple elements

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.5

Device Platform: Mobile

Date tested: one year ago

appendChild

2.3M/s

append

1.9M/s

View exact numbers

Test name	Executions per second
✓ appendChild	2,343,568 Ops/sec
append	1,948,781 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);