createDocumentFragment()

createDocumentFragment()

var x = document.createDocumentFragment();
var y = x.appendChild(document.createElement('h4'));
y.appendChild(document.createTextNode('Hello'));
var z = x.appendChild(document.createElement('p'));
z.appendChild(document.createTextNode('I am a document fragment'));
var b = document.getElementById('writebefore');
b.parentNode.insertBefore(x,b);