If you’re preparing for a React.js interview, here are some key questions you should expect: (➡️ follow Mamta Mishra for more content.)

1. What is React.js
Explain how React is a JavaScript library used to build interactive and fast user interfaces with a component-based approach.

2. What are props and state in React
Share the difference: props are used to pass data between components, while state is internal to a component and can change over time.

3. What is the purpose of the Virtual DOM in React
Discuss how React uses the Virtual DOM to improve performance by minimizing direct changes to the actual DOM.

4. What are React hooks 
Explain how hooks like `useState` and `useEffect` allow functional components to manage state and handle side effects without needing class components.

5. How does React handle component lifecycle
Talk about the lifecycle methods (like `componentDidMount` or `useEffect` in hooks) that manage updates, rendering, and cleanup.

➡️ follow Mamta Mishra for more content.
➡️ follow Mamta Mishra for more content.

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