Javascript DOM HTML Node firstChild Property for div element

Introduction

If we remove the whitespace from the source, there are no #text nodes in <div>, which will make the <p> element the first child node:

Click the button to get the node name of the DIV's first child node.

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<!DOCTYPE html>
<html>
<head>
<style>
div {/* www .j  av  a 2 s  .  c om*/
  border: 1px solid black;
  margin: 15px;
}
</style>
</head>
<body>

<div id="myDIV"><p>A P element - First child in div</p><span>A Span element - Last child in div</span></div>

<button onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
  var x = document.getElementById("myDIV").firstChild.nodeName;
  document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>



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