14/11/2025
⚡ Lesson 4: Handling Events & Forms in React + TypeScript 📝💙⚛️
In React, your UI becomes truly interactive when you can handle user events — clicks, typing, submitting forms, and more.
With TypeScript, this becomes even safer and cleaner because every event has an exact type.
🎯 1. Handling Events in React + TS
An event is just something the user does — like clicking a button.
💡 Why TypeScript types events:
Prevents writing wrong code
Gives auto-complete suggestions
Helps you know exactly what event data you can use
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🎯 2. Handling Forms with TypeScript
Forms collect user input — like name, email, passwords, etc.
React + TypeScript makes form handling predictable and type-safe.
📌 Why Forms Matter in Real Projects
Forms are literally everywhere:
Login screens 🔐
E-commerce checkout 💳
Contact us pages 📬
Admin dashboards ✏️
ERP input forms 📊
Learning to handle forms properly unlocks 80% of frontend development.
💡 Pro Tips for Beginners
✨ Always type your events (React.MouseEvent, React.ChangeEvent, etc.)
✨ Use useState to store form data
✨ Prevent default behavior with e.preventDefault()
✨ Start simple → then add validation later
