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<!DOCTYPE html>
<html>
<body>
​
<p>Click the button to check the feature Core XML DOM Level 2 is supported for the button element.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p><strong>Note:</strong> This method is not supported in Chrome, Firefox, Opera and IE8 and earlier versions.</p>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var item = document.getElementsByTagName("BUTTON")[0];
  var x = item.isSupported("Core", "2.0");
  document.getElementById("demo").innerHTML = x;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_node_issupported by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:19 GMT -->
</html>
​
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