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<!DOCTYPE html>
<html>
<head>
<style>
div {
  border: 1px solid black;
  margin: 15px;
}
</style>
</head>
<body>
​
<p>Click the button to get the tag name of the DIV's first child element.</p>
​
<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()">Try it</button>
​
<p><strong>Note:</strong> The firstElementChild property is not supported in IE8 and earlier versions.</p>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("myDIV").firstElementChild.tagName;
  document.getElementById("demo").innerHTML = x; 
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_element_firstelementchild2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:18 GMT -->
</html>
​
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