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<!DOCTYPE html>
<html>
<body>
<p id="myP">Click the button get the node type of the owner document of this &lt;p&gt; element.</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
  var x= document.getElementById("myP").ownerDocument.nodeType;  
  document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>