Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0
Firefox 126
Windows
Desktop
9 months ago
Test name Executions per second
replaceChild 1434729.0 Ops/sec
replaceChildren 575702.9 Ops/sec
append documentFragment 635970.6 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="container"></div>
Script Preparation code:
x
 
var elements = [document.createElement('div'), document.createElement('div')];
var fragment = document.createDocumentFragment();
var container = document.getElementById('container');
elements.forEach(element => fragment.appendChild(element));
container.appendChild(fragment);
Tests:
  • replaceChild

     
    var changeIndex = 1;
    elements[changeIndex] = document.createElement('div');
    container.replaceChild(elements[changeIndex], container.children[changeIndex]);
  • replaceChildren

     
    var changeIndex = 1;
    elements[changeIndex] = document.createElement('div');
    container.replaceChildren(elements)
  • append documentFragment

     
    var changeIndex = 1;
    var newChildren = document.createDocumentFragment();
    elements[changeIndex] = document.createElement('div');
    elements.forEach(element => newChildren.appendChild(element));
    container.replaceChildren(newChildren)