React Interview Questions For Freshers

What is React?

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What is the purpose of setState() in React?

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What are React hooks?

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Explain the component lifecycle methods in React

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What is the virtual DOM in React?

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How do you render multiple components in React?

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What is JSX?

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What are the key features of React?

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React Intermediate Interview Questions

What are portals in React?

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What is the useMemo hook in React?

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What is the purpose of the shouldComponentUpdate() method?

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What is context in React and how is it used?

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How can you optimize performance in React?

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What is prop drilling and how can it be avoided?

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What are React fragments and why are they used?

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What are higher-order components in React?

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What is the purpose of the key prop in React?

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How can you prevent a component from rendering in React?

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What are controlled and uncontrolled components in React?

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What are the differences between a class component and a functional component in React?

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React Interview Questions For Experienced

How can you handle state management in React without using Redux?

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How can you perform server-side rendering with React?

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What are the benefits of using Redux with React?

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Explain the concept of lazy loading in React.

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How can you handle asynchronous operations in React?

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What is the difference between React's virtual DOM and the actual DOM?

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Explain the useReducer hook in React.

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What is Server-Side Rendering (SSR) in React?

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How can you handle form validation in React?

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What are the best practices for structuring a React app?

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Explain how error boundaries work in React.

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What are the different lifecycle methods of a class component?

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