myblog.pk

  React.js Topics for a Mid-Senior Level Developer Interview Preparation 1. Core Concepts React Component Types (Class vs Functional Components)✅ JSX and Rendering Elements✅ Props and Prop Validation✅ State Management (useState, class-based state)✅ Lifecycle Methods vs Hooks (useEffect)✅ 2. Advanced React Context API✅ Higher-Order Components (HOC)✅ Render Props✅ React Portals✅ Refs (createRef✅, useRef✅, forwardRef✅) Error Boundaries✅ Suspense and Lazy Loading✅ Strict Mode✅ Concurrent Rendering✅ 3. React Hooks Basic Hooks: useState, useEffect✅ Advanced Hooks: useContext✅, useReducer✅, useMemo✅, useCallback✅, useRef✅, useLayoutEffect✅ Custom Hooks (Creation and Use Cases)✅ 4. React Performance React.memo and useMemo✅ React Profiler Avoiding Re-renders (key, memoization, and immutability)✅ Code Splitting and Lazy Loading✅ Virtual DOM and Reconciliation✅ 5. Routing React Router (v6+): Route Configurations✅ Nested Routing✅ Dynamic Routing✅ Programmatic Navigation (useNavigate, useParams...