Mid From PDF React React.js

What are middleware in Redux?

Q: What are middleware in Redux?

Short answer: Give examples. Middleware are functions that sit between dispatching an action and reaching the reducer. ✅ Common uses: Handle async operations (API calls) Logging Error handling ✅ Examples: redux-thunk redux-saga redux-logger ✅ Example (redux-logger): const logger = store => next => action => { console.log('dispatching', action); return next(action); }; Real-world example (ShopNest) ShopNest’s storefront is React: components for ProductCard, CartDrawer, and CheckoutForm, with hooks for local UI state. Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: Give examples. Middleware are functions that sit between dispatching an action and reaching the reducer. ✅ Common uses: Handle async operations (API calls) Logging Error handling ✅ Examples: redux-thunk redux-saga redux-logger ✅ Example (redux-logger): const logger = store => next => action => { console.log('dispatching', action); return next(action); };

Real-world example (ShopNest)

ShopNest’s storefront is React: components for ProductCard, CartDrawer, and CheckoutForm, with hooks for local UI state.

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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