QUESTION 1:
What is the difference between React and React Native?
React Junior
React job interview questions
Looking to land your dream job as a React developer? We've compiled a comprehensive guide of essential React job interview questions covering React fundamentals, components, state and lifecycle methods, Redux, hooks, performance optimization, and more. Prepare with confidence and ace your next interview.
QUESTION 2:
How do you handle authentication and authorization in a React application?
React Junior
QUESTION 3:
How do you implement server-side rendering in a React application?
React Junior
QUESTION 4:
How do you handle errors in React applications?
React Junior
QUESTION 5:
What are some ways to optimize the performance of a React application?
React Junior
QUESTION 6:
What is side effect in React?
React Junior
QUESTION 7:
What are the most common options to store state in React?
React Junior
QUESTION 8:
What are the most commonly used React hooks?
React Junior
QUESTION 9:
How do you render lists in React?
React Junior
QUESTION 10:
Why do we need keys for React lists?
React Junior
QUESTION 11:
What are React fragments used for?
React Junior
QUESTION 12:
How do you pass data to React components?
React Junior
QUESTION 13:
How is React shadow DOM different than virtual DOM?
React Junior
QUESTION 14:
What is React virtual DOM?
React Junior
QUESTION 15:
What is React shadow DOM?
React Junior
QUESTION 16:
What are bundlers in React?
React Junior
QUESTION 17:
What is JSX in React?
React Junior
QUESTION 18:
What is prop drilling in React?
React Junior
QUESTION 19:
What are package managers in React?
React Junior
QUESTION 20:
What three dots mean in React code?
React Junior
QUESTION 21:
What are React hooks?
React Junior
QUESTION 22:
What is uncontrolled component in React?
React Junior
QUESTION 23:
What is a controlled component in React?
React Junior
QUESTION 24:
How is state different than props in React?
React Junior
QUESTION 25:
What are props in React?
React Junior
QUESTION 26:
What is mounted component in React?
React Junior
QUESTION 27:
Which methods would you use to handle events in React?
React Junior
QUESTION 28:
How would you avoid binding in React?
React Junior
QUESTION 29:
When would you use useMemo in React?
React Junior
QUESTION 30:
What method would you use to check and improve speed of React app?
React Junior
QUESTION 31:
Which methods would you use to conditionally add attribute to components in React?
React Junior
QUESTION 32:
How would you use validation on props?
React Junior
QUESTION 33:
Why would you use super constructors with props arguments in React?
React Junior
QUESTION 34:
In which situation would you use refs in React?
React Junior
QUESTION 35:
Why do you need to use refs in React?
React Junior
QUESTION 36:
What are refs in React?
React Junior
QUESTION 37:
What is better in React? Functional or class component?
React Junior
QUESTION 38:
What is difference between functional and class component?
React Junior
QUESTION 39:
What is class component in React?
React Junior
QUESTION 40:
What is functional component in React?
React Junior
QUESTION 41:
Do hooks replace high order components in React?
React Junior
QUESTION 42:
What happens if you attempt to update the state directly in React?
React Junior
QUESTION 43:
What are the React lifecycle stages?
React Junior
QUESTION 44:
What are 3 advantages of using React hooks?
React Junior
QUESTION 45:
How often does useState update in React?
React Junior
QUESTION 46:
What is useState() good for in React?
React Junior
QUESTION 47:
How do you install React?
React Junior
QUESTION 48:
How do you create a React app?
React Junior
QUESTION 49:
What is React?
React Junior
QUESTION 50:
Why would you recommend to use React?
React Junior
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Recently added questions
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- How do you handle authentication and authorization in a React application?
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- How do you handle errors in React applications?
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