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<!DOCTYPE html> <html> <body> <p><a id="myAnchor" href="../../www.example.com:4097/test.htm#part2">Example link</a></p> <p>Click the button to display the port number of the link above.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myAnchor").port; document.getElementById("demo").innerHTML = x; } </script> </body> </html>