How should I learn Redux in React?
In order: understand the problem Redux solves, learn the core concepts of store, actions, and reducers, learn RTK basics with createSlice and configureStore, read and dispatch with useSelector and useDispatch, handle async with createAsyncThunk, then learn RTK Query and patterns at scale.
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Why Redux exists: managing shared state across many components without prop drilling. Feel the pain that Context cannot solve before learning Redux, so you understand the problem it solves and when to use it.
After you can read and dispatch with useSelector and useDispatch. createAsyncThunk handles async like data fetching, and you manage its pending, fulfilled, and rejected cases in extraReducers. Build a feature that fetches data to practice.
After you understand createAsyncThunk and selectors. RTK Query handles API data fetching with caching, invalidation, and loading states for you, removing most hand-written data-fetching code. It is the modern way to fetch API data in a Redux app.
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