Redux quiz

Test your Redux knowledge with a free interactive quiz — 25 questions with answers and explanations. No signup needed to play.

What is a "selector" in Redux?

1. What is a "selector" in Redux?
2. What is the `Provider` component from react-redux for?
3. How do you read state from the store in a React component (with react-redux)?
4. Why does Redux Toolkit's `createSlice` let you write code that looks like it mutates state (e.g. `state.count += 1`) even though Redux requires immutability?
5. How do you connect a plain (non-hooks) class component to the Redux store?
6. How do you trigger a state change in Redux?
7. What is the Redux DevTools extension used for?
8. What does `configureStore` (from Redux Toolkit) set up by default that the older `createStore` didn't?
9. What is Redux?
10. What is Redux "middleware"?
11. What is a "reducer"?
12. What does `combineReducers` do?

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