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<!DOCTYPE html> <html> <body> <p id="demo">Click one button to add text, click another button to normalize the document</p> <button onclick="addTextNode()">Add a Text Node</button> <button onclick="normPara()">Normalize the Document</button> <script> function addTextNode() { var y=document.createTextNode(" Click again"); var x=document.getElementById("demo"); x.appendChild(y); var z=document.getElementById("cc"); z.innerHTML=x.childNodes.length; } function normPara() { document.normalize(); var x=document.getElementById("demo"); var z=document.getElementById("cc"); z.innerHTML=x.childNodes.length; } </script> <p>The paragraph above has <span id="cc">1</span> child node(s).</p> </body> </html>
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