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<!DOCTYPE html>
<html>
<head>
<style>
#cc {
  font-size: 20px;
  color: red;
}
</style>
</head>
<body>
​
<p id="demo">Click one button to add text to this paragraph, click the other button to normalize the paragraph.</p>
​
<button onclick="addTextNode()">Add a Text Node</button>
<button onclick="normPara()">Normalize the paragraph</button>
​
<p>The paragraph above has <span id="cc">1</span> child node(s).</p>
​
<script>
function addTextNode() {
  var x = document.createTextNode(" Click again.");
  var y = document.getElementById("demo");
  y.appendChild(x);
  var x = document.getElementById("cc");
  x.innerHTML = y.childNodes.length;
}
​
function normPara() {
  var x = document.getElementById("demo");  
  x.normalize();
  var y = document.getElementById("cc");
  y.innerHTML = x.childNodes.length;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_node_normalize by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:19 GMT -->
</html>
​
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