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How to Create a Form Dynamically with the JavaScript?

  • Last Updated : 30 Jul, 2021

The task is to create an HTML form dynamically with the help of JavaScript. There are two approaches that are discussed below.

Approach 1: Use document.createElement() to create the new elements and use setAttribute() method to set the attributes of elements. Append these elements to the <form> element by appendChild() method. Finally append the <form> element to the <body> element of the document. This example creates a Registration form.

  • Example:




    <!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 synamically
        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>
  • Output:

Approach 2: This approach is somewhat similar to the previous one but using the JQuery method to append the elements. Use document.createElement() to create the new elements and use setAttribute() method to set the attributes of elements. Append these elements to the < form > element by append() method of JQuery. Finally append the <form> element to the <body> element of the document. This example creates a LOGIN form.

  • Example:




    <!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");
                function GFG_Fun() {
                    
                    // Create a form synamically
                    var form = document.createElement("form");
                    form.setAttribute("method", "post");
                    form.setAttribute("action", "submit.php");
      
                    // Create an input element for emailID
                    var ID = document.createElement("input");
                    ID.setAttribute("type", "text");
                    ID.setAttribute("name", "emailID");
                    ID.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 a submit button
                    var s = document.createElement("input");
                    s.setAttribute("type", "submit");
                    s.setAttribute("value", "Submit");
      
                    // Append the email_ID input to the form
                    form.append(ID); 
                    
                    // Append the password to the form
                    form.append(PWD); 
                    
                    // Append the button to the form
                    form.append(s); 
      
                    document.getElementsByTagName("body")[0]
                   .appendChild(form);
                }
            </script>
        </body>
    </html>
  • Output:

JavaScript is best known for web page development but it is also used in a variety of non-browser environments. You can learn JavaScript from the ground up by following this JavaScript Tutorial and JavaScript Examples.



HTML is the foundation of webpages, is used for webpage development by structuring websites and web apps.You can learn HTML from the ground up by following this HTML Tutorial and HTML Examples.

CSS is the foundation of webpages, is used for webpage development by styling websites and web apps.You can learn CSS from the ground up by following this CSS Tutorial and CSS Examples.

Attention reader! Don’t stop learning now. Get hold of all the important HTML concepts with the Web Design for Beginners | HTML  course.




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