Form Handling

Forms are essential for collecting user input. In React, form handling combines controlled inputs with event handling for a seamless user experience.

Form Submission Basics

The key to React form submission is preventing the default browser behavior:

Managing Form State

Forms typically have multiple fields managed together:

The onSubmit Handler

A complete form submission pattern in React:

Exercise: Simple Form Handler

Exercise: Multi-Field Form

Exercise: Form with Reset

Handling Different Input Types

Forms often include various input types:

Form Submission Patterns

Common patterns for handling form submission:

Key Takeaways

1. preventDefault() - Always prevent default form submission
2. Centralized state - Manage all form fields in one state object
3. Generic handlers - Use field names to update any input
4. Different input types - Handle text, checkbox, select differently
5. Submission patterns - Loading states, success/error handling