<p>Click the button to insert an item to the list.</p>
<buttononclick="myFunction()">Try it</button>
<p><strong>Example explained:</strong><br>First create a LI node,<br> then create a Text node,<br> then append the Text node to the LI node.<br>Finally insert the LI node before the first child node in the list.</p>
<script>
function myFunction() {
var newItem = document.createElement("LI");
var textnode = document.createTextNode("Water");
newItem.appendChild(textnode);
var list = document.getElementById("myList");
list.insertBefore(newItem, list.firstChild);
var result = document.getElementsByTagName("UL")[0].outerHTML;