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This set of questions covers fundamental concepts in React, including props, state, the VDOM, hooks, and more.
Practice these questions and get feedbacks! It will help you improve your answer.
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1. What is the difference between a key and a ref in React?
2. What is the difference between a class component and a functional component?
3. What is the difference between props and state in React?
4. Explain the purpose of the shouldComponentUpdate() lifecycle method.
5. What is the difference between synthetic events and native events in React?
6. What is the Virtual DOM (VDOM)?
7. What is the role of the render() method in React?
8. Explain the concept of a React component.
9. Explain the concept of React Router.
10. Explain the concept of hooks in React.