Run results for: JS: append vs appendChild multiple elements fwaeafwaw

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Chrome OS 14541.0.0

Device Platform: Desktop

Date tested: one year ago

document fragment

7.9M/s

append

49K/s

appendChild

34K/s

View exact numbers

Test name	Executions per second
✓ document fragment	7,912,162 Ops/sec
append	49,152 Ops/sec
appendChild	34,212 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");
let doc = document.createDocumentFragment()
doc.append(paragraph,paragraph1,paragraph2,paragraph3)

Tests:

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