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React Developer Interview Questions

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3,481 react developer interview questions shared by candidates

1. Tell me about yourself. 2. Lifecycle method. 3. How to connect to Redux store 4. We have 4 APIs being called. Display as soon as we get 1 API by using promises. 5. Virtual DOM 6. Promise 7. Hooks 8. useContext 9. Diff between useState and useReducer. 10. static getDerivedStatefromProps() - function? 11. action, store, dispatch in Redux 12. where does props get updated in lifecycle? 13. We have an object and we do not want to change the value of its contents. What do we do?
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React Js Developer

Interviewed at Cognizant

3.6★
Jul 21, 2021

1. Tell me about yourself. 2. Lifecycle method. 3. How to connect to Redux store 4. We have 4 APIs being called. Display as soon as we get 1 API by using promises. 5. Virtual DOM 6. Promise 7. Hooks 8. useContext 9. Diff between useState and useReducer. 10. static getDerivedStatefromProps() - function? 11. action, store, dispatch in Redux 12. where does props get updated in lifecycle? 13. We have an object and we do not want to change the value of its contents. What do we do?

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