React Interview Questions

Q1 What is React and how does it work? ✓ Answered → Q2 What is JSX? ✓ Answered → Q3 What is the Virtual DOM? ✓ Answered → Q4 Difference between real DOM and Virtual DOM? ✓ Answered → Q5 What are functional components? ✓ Answered → Q6 What are class components? ✓ Answered → Q7 What are props in React? ✓ Answered → Q8 What is state in React? ✓ Answered → Q9 Difference between props and state? ✓ Answered → Q10 What is useState hook? ✓ Answered → Q11 What is useEffect hook? ✓ Answered → Q12 What are React hooks? ✓ Answered → Q13 Rules of hooks in React? ✓ Answered → Q14 What is conditional rendering? ✓ Answered → Q15 What are controlled components? ✓ Answered → Q16 What are uncontrolled components? ✓ Answered → Q17 What is lifting state up? ✓ Answered → Q18 What is context API? ✓ Answered → Q19 What is useContext? ✓ Answered → Q20 What are React fragments? ✓ Answered →