Forms and Validation

Collect user data! Create and validate interactive forms.

Collect user data! Create and validate interactive forms.

<form>, <input>, <textarea> tags

Input types (email, number, date)

Radio buttons and checkboxes

Project: Registration form

Styling with CSS

Submit event

Check empty fields

Email and password validation

Display error messages

Project: Secure contact form Premium

Real-time validation (keyup) Premium

Developer & Instructor

I make forms enjoyable to fill and smart to validate. No more frustrating errors!

3 days ago

My form validates email in real time and shows a green check. My friends think I hacked a pro site!

HTML5 validation is basic. JavaScript lets you customize messages, rules, and react dynamically.

In this course, no—we stay frontend. To send data, you need a backend (you’ll learn that in the Pro level!).

01 Why validate with JavaScript if HTML5 does it?