<html>
<body>
<ul><li>Coffee</li><li>Tea</li></ul>
<p id="demo">Click the button to make changes to a list item, using the createDocumentFragment method, then appending the list item as the last child of the list.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var d=document.createDocumentFragment();
d.appendChild(document.getElementsByTagName("LI")[0]);
d.childNodes[0].childNodes[0].nodeValue="Milk";
document.getElementsByTagName("UL")[0].appendChild(d);
};
</script>
</body>
</html>