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Form Validation in Bootstrap 5

Bootstrap Form Validation​

In Bootstrap you can implement form validation by using the built-in validation classes and JavaScript features.

The validation classes help you highlight and style form fields based on their validation status.

As an example:

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In the above example:

We implement form validation using the Bootstrap 5 validation classes and JavaScript. Here's how it works:

  • The needs-validation class is added to the <form> element to enable the validation features.
  • Each form field that requires validation is wrapped inside a <div> element with the mb-3 class for spacing purposes.
  • The required attribute is added to the input fields that should not be empty.
  • The <div> element with the class invalid-feedback is used to display the error message