README.md

Week-07

📦 Week 07 – State Management in React

🗓 Topics Covered

✅ Week 7.1 — Prop Drilling & Context API

• Prop Drilling: Passing data from parent to child, even if it's not needed at every level.
• Problem: Becomes messy and hard to manage in large apps.
• Context API:
  • Helps share global data (like theme, user info) without prop drilling.
  • Uses createContext, Provider, and useContext.

✅ Week 7.2 — Context API & Recoil

• Limitations of Context API:
  • Not great for frequent updates or many different pieces of state.
• Recoil Introduction:
  • A state management library made for React.
  • Uses atoms (state units) and selectors (derived/computed state).
  • Great for scalable and fast state management.

✅ Week 7.3 — Recoil Deep Dive

• Selectors:
  • Compute values from atoms (like uppercase name).
• Async Selectors:
  • Fetch data from APIs (e.g. user profile, todos).
• Recoil Dev Tools:
  • Helps debug your state.
• Learn about:
  • useRecoilState
  • useRecoilValue
  • useSetRecoilState
  • atom effects (e.g. syncing with localStorage)

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🛠 Mini Project: User Dashboard

🎯 Features:

• View and update user profile
• Toggle dark/light theme
• Practice prop drilling, then refactor with Context API and Recoil

💡 Learning Outcome:

• Understand the need for state management tools
• Build scalable apps without passing props everywhere

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📚 Bonus: What's TanStack?

• A collection of powerful tools for React:
  • TanStack Query (React Query) → Data fetching & caching
  • TanStack Table → Dynamic tables
  • TanStack Router → Lightweight routing
• Helps you manage server state (not component state)

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