How to Create a Form Dynamically with the JavaScript

We can use document.createElement() to create the new elements and use setAttribute() method to set the attributes of elements. Append these elements to the element by appendChild() method. Finally append the element to the element of the document. This example creates a Registration form.

<!DOCTYPE html>
<html>
    <head>
        <title>
            Create a Form Dynamically with
            the JavaScript
        </title>
    </head>
    <body style="text-align: center;">
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
        <p>
          Click on the button to create
          a form dynamically
        </p>
        <button onClick="GFG_Fun()">
            click here
        </button>
        <p id="GFG_DOWN"></p>
 <script>
    var down = document.getElementById("GFG_DOWN");
           
    // Create a break line element
    var br = document.createElement("br");
    function GFG_Fun() {
               
    // Create a form dynamically
    var form = document.createElement("form");
    form.setAttribute("method", "post");
    form.setAttribute("action", "submit.php");
 
    // Create an input element for Full Name
    var FN = document.createElement("input");
    FN.setAttribute("type", "text");
    FN.setAttribute("name", "FullName");
    FN.setAttribute("placeholder", "Full Name");
 
     // Create an input element for date of birth
     var DOB = document.createElement("input");
     DOB.setAttribute("type", "text");
     DOB.setAttribute("name", "dob");
     DOB.setAttribute("placeholder", "DOB");
 
     // Create an input element for emailID
     var EID = document.createElement("input");
     EID.setAttribute("type", "text");
     EID.setAttribute("name", "emailID");
     EID.setAttribute("placeholder", "E-Mail ID");
 
      // Create an input element for password
      var PWD = document.createElement("input");
      PWD.setAttribute("type", "password");
      PWD.setAttribute("name", "password");
      PWD.setAttribute("placeholder", "Password");
 
       // Create an input element for retype-password
       var RPWD = document.createElement("input");
       RPWD.setAttribute("type", "password");
       RPWD.setAttribute("name", "reTypePassword");
       RPWD.setAttribute("placeholder", "ReEnter Password");
 
                // create a submit button
                var s = document.createElement("input");
                s.setAttribute("type", "submit");
                s.setAttribute("value", "Submit");
                 
                // Append the full name input to the form
                form.appendChild(FN);
                 
                // Inserting a line break
                form.appendChild(br.cloneNode());
                 
                // Append the DOB to the form
                form.appendChild(DOB);
                form.appendChild(br.cloneNode());
                 
                // Append the emailID to the form
                form.appendChild(EID);
                form.appendChild(br.cloneNode());
                 
                // Append the Password to the form
                form.appendChild(PWD);
                form.appendChild(br.cloneNode());
                 
                // Append the ReEnterPassword to the form
                form.appendChild(RPWD);
                form.appendChild(br.cloneNode());
                 
                // Append the submit button to the form
                form.appendChild(s);
 
                document.getElementsByTagName("body")[0]
               .appendChild(form);
            }
        </script>
    </body>
</html>

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