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<!DOCTYPE html>
<html>
<body>
<ul id="myList">
<li>Coffee</li>
<li>Tea</li>
</ul>
<p>Click the button to append an item to the end of the list.</p>
<button onclick="myFunction()">Try it</button>
<p><strong>Note:</strong><br>First create an LI node,<br> then create a Text node,<br> then append the Text node to the LI node.<br>Finally append the LI node to the list.</p>
<script>
function myFunction() {
var node = document.createElement("LI");
//var textnode = document.createTextNode("Water");
node.append("Water", " Milk");
console.assert(node.outerHTML === '<li>Water Milk</li>', "Water Milk");
//node.append(textnode);
document.getElementById("myList").append(node);
console.assert(document.getElementsByTagName("UL")[0].outerHTML === '<ul id="myList">\n <li>Coffee</li>\n <li>Tea</li>\n<li>Water Milk</li></ul>', document.getElementsByTagName("UL")[0].outerHTML);
}
console.error('element.append.html');
myFunction();
console.exit();
</script>
</body>
</html>
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