ReddyDivya / rd-interview-preparation

This repository compiles all my JavaScript, React, Redux interview question preparations along with their corresponding answers.

React Interview Questions

This repository compiles all my react interview question preparations and their corresponding answers.

💡🔥 Top REACT Interview questions - Part 2 💼🎯

DO NOT go to Interview without preparing for them !!

0. What is Lifting State Up in React?

1. What is React context?

2. What are different ways to add CSS in your app?

3. What is Hot Module Replacement?

4. What is the use of Parcel, Vite, Webpack?

5. How does create-react-app work?

6. What is Tree Shaking?

7. Difference b/w dependency and devDependency

8. What is npx and npm?

9. Difference b/w package .json and package-lock .json

10. Difference between console .log() and console .log(HeaderComponent());

11. What is React.Fragment?

12. What is the purpose of dependency array in useEffect? What is the difference when it is used and when it is not used?

13. What if 2 components are given will the state change in one component will effect the other component’s state (child)?

14. What is the use of return in useEffect ?

15. Difference b/w client-side routing and server-side routing?

16. Explain the concept of code splitting and its benefits in React.

17. How does React handle routing and navigation?

18. What are higher-order components (HOC) in React?

19. What are controlled and uncontrolled components?

20. Explain the concept of reconciliation in React.

Top 20 REACT Interview Questions 💼🎯

1. How does React Fiber improve performance in React applications?

2. Explain the concept of code splitting and its benefits in React.

3. What are the key differences between server-side rendering (SSR) and client-side rendering (CSR) in React?

4. Describe the concept of render props and their use cases in React.

5. How can you optimize the rendering of large lists in React?

6. Explain the concept of memoization and its importance in React.

7. What is the purpose of the useEffect() hook in React and how does it work?

8. How does React handle routing and navigation?

9. How can you handle asynchronous operations in React using async/await?

10. Explain the concept of the Context API in React and its benefits.

11. What is the role of higher-order components (HOC) in React and how can you implement them?

12. Describe the concept of controlled and uncontrolled components in React forms.

13. How does React handle state management in large-scale applications?

14. Explain the concept of suspense in React and its use cases.

15. What are the different ways to handle side effects in React using hooks?

16. Explain the concept of reconciliation in React.

17. How can you prevent unnecessary re-renders in React?

18. What are the different ways to style components in React?

19. What are the key considerations when implementing a scalable React application?

20. Describe the concept of reusability, modularity, testability in React components.

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