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<html><body onload="normPara()"><h1>The Document Object</h1><h2>The normalize() Method</h2><button onclick="addTextNode()">Add a Text Node</button><button onclick="normPara()">Normalize the Document</button><p>The document has <span id="cc" style="font-size:20px">1</span> child node(s).</p><script>function addTextNode() {const textNode= document.createTextNode("Click again. ");const body = document.body;body.appendChild(textNode);const cc = document.getElementById("cc"); cc.innerHTML = body.childNodes.length;}function normPara() { document.normalize(); const body = document.body; const cc = document.getElementById("cc"); cc.innerHTML = body.childNodes.length;}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_document_normalize by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:43 GMT --></html>