Run results for: JS: insertBefore vs append vs prepend

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0

Browser: Firefox 141

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

append

37K/s

insertBefore

19K/s

prepend

12K/s

View exact numbers

HTML Preparation code:

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

Script Preparation code:

var container = document.getElementById("container");
var paragraphs = new Array( 100 ).fill( 'p' );

Tests:

insertBefore
paragraphs.forEach( p => container.insertBefore( document.createElement( p ), null ) );
append
container.append( ...paragraphs.map( p => document.createElement( p ) ) );
prepend
paragraphs.forEach( p => container.prepend( document.createElement( p ) ) );