Global Client State

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1. 1 What core problem does Redux solve, and what's the mental model of actions → reducers → store? Medium
2. 2 Compare Redux Toolkit, Zustand, Jotai, and Context — when would you reach for each? Medium
3. 3 Why is React Context not a state-management solution, and what performance trap does it hide? Medium
4. 4 What's the difference between an atom-based (Jotai/Recoil) and a single-store (Redux) model? Hard
5. 5 How do you avoid unnecessary re-renders from a global store — selectors and equality checks? Hard
6. 6 How would you structure global state so it stays maintainable as the app grows? Hard