Render Lists in React using map() | Why key Prop is IMPORTANT

Описание: In this video, we will learn how to render lists in React using the map() function 🚀

Most beginners know how to use map(), but very few understand:
❓ Why React needs a key prop
❓ What happens if we don’t use keys
❓ How React uses keys internally for performance

🔥 What you’ll learn in this video:
✅ How to render lists in React
✅ Using JavaScript map() in JSX
✅ What is key prop in React
✅ Why key prop is required
✅ index as key – good or bad?
✅ Best practices for list rendering

This video is perfect for:
✔ React beginners
✔ MCA / BCA / CS students
✔ Frontend developers
✔ React interview preparation

📌 After watching this video, you’ll clearly understand how React updates lists efficiently.

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📚 Upcoming videos:
React keys in depth
useEffect real-world examples
React interview questions
Beginner React projects

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