Form validation is a process of confirming the relevant information entered by the user in the input field. Here we will be validating a simple form that consists of a username, password and a confirm password using jQuery.
- First of all, you need to create an index.html file that consists of Bootstrap 4 form with username, email, password, and confirm password as input fields. At the bottom of the “body” tag, include the “app.js” file having jQuery code for form validation.
- Create an app.js file that validates the whole form as given below in the code.
- In the app.js file, when the document is ready, hide all the error messages. Perform the validation task for all the input fields such as username, email, password, and confirm password.
index.html: The following HTML code demonstrates the form design for user input.
app.js: The following jQuery code for validation is used in the above HTML file .
Output: Below is the output generated when the user directly hits the submit button.
Below is the output generated when the user enters invalid details in the form.