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elinks/test/ecmascript/insertBefore.html
2021-06-04 19:41:06 +02:00

29 lines
757 B
HTML

<!DOCTYPE html>
<html>
<body>
<ul id="myList">
<li>Coffee</li>
<li>Tea</li>
</ul>
<p>Click the button to insert an item to the list.</p>
<button onclick="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);
alert(document.getElementsByTagName("BODY")[0].outerHTML);
}
</script>
</body>
</html>