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What are thunks and sagas?

Q: What are thunks and sagas?

Short answer: Feature Thunks (redux-thunk) Sagas (redux-saga) Concept Functions returned from actions Generator-based side effects Complexity Simple Advanced Syntax Imperative (JS functions) Declarative (generators/yield) Use case Basic async logic Complex flows, retries, delays ✅ Thunk Example code const fetchUser = () => (dispatch) => { fetch("/api/user") .then(res => res.json()) .then(data => dispatch({ type: "SET_USER", payload: data })); }; 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: Feature Thunks (redux-thunk) Sagas (redux-saga) Concept Functions returned from actions Generator-based side effects Complexity Simple Advanced Syntax Imperative (JS functions) Declarative (generators/yield) Use case Basic async logic Complex flows, retries, delays ✅ Thunk

Example code

const fetchUser = () => (dispatch) => { fetch("/api/user") .then(res => res.json()) .then(data => dispatch({ type: "SET_USER", payload: data })); };

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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