???? React Interview Questions: From Basics to Advanced 2025 by Lalit Kanyal

???? React Interview Questions: From Basics to Advanced 2025 by Lalit Kanyal

Lalit Kanyal Lalit Kanyal

Lalit Kanyal

Sharing Insights on Full Stack Web Development, Python, JavaScript, Cyber Security, OSINT, Digital Forensics, Blockchain, AI, Machine Learning, and Emerging Technologies.

发布日期: 2025年1月1日
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??For Freshers:

  1. What is React?
  2. What is an SPA?
  3. What is JSX, and how is it different from HTML?
  4. Difference between functional and class components.
  5. Difference between stateless and stateful components.
  6. What are props in React?
  7. Difference between state and props in React.
  8. What are controlled vs. uncontrolled components?
  9. What is the purpose of the key attribute in React lists?
  10. What are fragments in React?

??Intermediate Level Questions:

  1. What is the Virtual DOM?
  2. What are React lifecycle methods?
  3. Explain the useState and useEffect hooks.
  4. What is props drilling in React?

??Advanced Level Questions:

  1. What is the Context API?
  2. What are Higher-Order Components (HOCs)?
  3. Explain reconciliation in React.
  4. What are React Portals?
  5. How does React Router handle navigation in a single-page app?
  6. Explain React Strict Mode.

Prepared by - Lalit Kanyal

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