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<!DOCTYPE html>
<html>
<body>
<ul id="myList1"><li>Coffee</li><li>Tea</li></ul>
<ul id="myList2"><li>Water</li><li>Milk</li></ul>
<p>Click the button to copy an item from one list to another.</p>
<button onclick="myFunction()">Try it</button>
<p>Try changing the <em>deep</em> parameter to false, and only an empty LI element will be cloned.</p>
<script>
function myFunction() {
var itm = document.getElementById("myList2").lastChild;
console.assert(itm.outerHTML === '<li>Milk</li>', 'Milk');
var cln = itm.cloneNode(true);
document.getElementById("myList1").appendChild(cln);
console.assert(document.getElementById("myList1").innerHTML === '<li>Coffee</li><li>Tea</li><li>Milk</li>', 'Coffee, Tea, Milk');
}
console.error('element.cloneNode.html');
myFunction();
console.exit();
</script>
</body>
</html>
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