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<!DOCTYPE html> <html> <body> <form> First Name: <input type="text" name="fname" value="Donald"><br> Last Name: <input type="text" name="lname" value="Duck"> </form> <p>Click the button to display the number of form elements in the document.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.forms.length; document.getElementById("demo").innerHTML = x; } </script> </body> </html>