Top 9 React Interview Questions

Vineet Mishra
Dec 18, 2021


As a react developer you are likely to face these questions in your interview round

Q1. Difference between dom and virtual dom (Must do)?

Q2. What are the state and props and the difference between them?

Q3. What is a controlled and uncontrolled component?

Q4. Class Component v/s Functional Component (Must do)?

Q5. Explain React-Redux with an example?

Q6. Explain Context API and useContext?

Q7. What is prop drilling, how can we avoid that in react app?

Q8. Lifecycle method (In a class or functional component)?

Q9. What is react fiber?



Vineet Mishra

SDE 2 at Accelya , I write about Mobile/Web Development and Deployment, and Interview Q & A