28+ React Coding Questions

React Coding Questions:

• What is React, and how does it differ from other JavaScript frameworks?
• What are the main features of React?
• How does React's virtual DOM work?
• What is JSX, and why is it used in React?
• What are components in React, and how do you create them?
• What is the difference between class components and functional components?
• How do you handle events in React?
• What are props in React, and how are they used?
• What is state in React, and how do you manage it?
• How do you update state in React?
• What are controlled components in React?
• What is the useState hook, and how does it work?
• What is the useEffect hook, and how does it work in React?
• What is the difference between useState and useEffect hooks?
• What are React lifecycle methods, and how do they work?
• How do you handle side effects in React?
• What is the context API in React, and how is it used?
• How does React Router help in navigation between pages in a React application?
• What is Redux, and how is it used in React applications?
• What is the purpose of the mapStateToProps and mapDispatchToProps functions in Redux?
• What are higher-order components (HOCs) in React?
• How do you optimize performance in a React application?
• What are keys in React, and why are they important?
• How do you implement form validation in React?
• What are React fragments, and why are they used?
• How do you handle error boundaries in React?
• What is prop drilling, and how can you avoid it in React?
• How do you handle dynamic imports in React?
• What is the purpose of the useRef hook in React?
• How do you handle conditional rendering in React?
• What are render props in React?
• How do you implement code splitting in React?
• What are the advantages of using TypeScript with React?
• What is the purpose of the React Suspense component?
• How do you test React components using Jest and React Testing Library?
• How do you handle HTTP requests in React?
• What are some best practices for structuring a React application?