How to Create a Form Dynamically with the JavaScript?
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:
html
<!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> |
- 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:
html
<!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 dynamically 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.
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