Редактирование кода:
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<!DOCTYPE html> <html> <body> <p id="myP">Click the button get the node type of the owner document of this <p> 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>