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React Basics – React interview questions

React Basics interview questions for placements and exams.

Subject: ReactDifficulty: Mixed19 questions in this set

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React

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React – React Basics questions (19)

Go through each question and its explanation. Use this set as a focused practice pack for React.

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1. React is mainly used for developing ______.

Difficulty: EasyType: MCQTopic: React Basics

React focuses on building interactive user interfaces for web and mobile apps. It doesn't handle databases or backend logic.

2. ______ is a necessary API for every React.js component.

Difficulty: EasyType: MCQTopic: Rendering

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React Basics – React interview questions

Set overview

React – React Basics questions (19)

1. React is mainly used for developing ______.

2. ______ is a necessary API for every React.js component.

Continue your preparation

3. What are the advantages of using React?

4. What is the purpose of ReactDOM.render()?

5. What is JSX? Why do we use it in React?

6. What are props in React?

7. Explain the unidirectional data flow in React.

8. What is React or ReactJS?

9. What are the limitations of React?

10. What are the main features of React?

11. Can we write React without JSX? If yes, how?

12. What is the difference between Real DOM and Virtual DOM?

13. How does React use the virtual DOM to render the UI efficiently?

14. What are keys in React and why are they important?

15. When should you use keys and what happens if you don’t provide them?

16. What are state and props in React? Compare them.

17. The keys given to a list of elements in React should be ______.

18. What is React and who created it?

19. Explain the scope and growth of React in the web development ecosystem.

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React Basics – React interview questions

Set overview

1. React is mainly used for developing ______.

2. ______ is a necessary API for every React.js component.

Continue your preparation

3. What are the advantages of using React?

4. What is the purpose of ReactDOM.render()?

5. What is JSX? Why do we use it in React?

6. What are props in React?

7. Explain the unidirectional data flow in React.

8. What is React or ReactJS?

9. What are the limitations of React?

10. What are the main features of React?

11. Can we write React without JSX? If yes, how?

12. What is the difference between Real DOM and Virtual DOM?

13. How does React use the virtual DOM to render the UI efficiently?

14. What are keys in React and why are they important?

15. When should you use keys and what happens if you don’t provide them?

16. What are state and props in React? Compare them.

17. The keys given to a list of elements in React should be ______.

18. What is React and who created it?

19. Explain the scope and growth of React in the web development ecosystem.

More sets in React

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Master Interviews
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