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22 SECTIONS · 380 TOPICS

React Roadmap

  1. React Components and JSX Syntax

    1. 1. Functional Components and Arrow Functions
    2. Example: Component declaration patterns
    3. 2. JSX Elements and Expression Embedding (curly braces)
    4. Example: JSX expressions and embedding
    5. 3. Component Props and Destructuring
    6. Example: Props destructuring patterns
    7. 4. Children Prop and Component Composition
    8. Example: Children and composition patterns
    9. 5. Conditional Rendering Patterns (&&, ternary, if-else)
    10. Example: Conditional rendering techniques
    11. 6. JSX Fragment (
    12. Example: Fragment usage patterns

  2. React Hooks - useState, useEffect, useContext

    1. 1. useState Hook and State Management
    2. Example: useState patterns and updates
    3. 2. useEffect Hook and Side Effects (lifecycle methods)
    4. Example: useEffect patterns and cleanup
    5. 3. useContext Hook for Context API
    6. Example: Context creation and consumption
    7. 4. useReducer Hook for Complex State Logic
    8. Example: useReducer for complex state management
    9. 5. useMemo and useCallback for Performance Optimization
    10. Example: useMemo and useCallback optimization
    11. 6. useRef Hook for DOM Access and Mutable Values
    12. Example: useRef for DOM access and mutable values

  3. Modern React 18+ Features REACT 18+

    1. 1. useTransition Hook for Non-blocking Updates
    2. Example: useTransition for responsive filtering
    3. 2. useDeferredValue Hook for Deferred Values
    4. Example: useDeferredValue for responsive search
    5. 3. useId Hook for Unique Identifiers
    6. Example: useId for accessible form fields
    7. 4. useSyncExternalStore Hook for External State
    8. Example: useSyncExternalStore for browser APIs
    9. 5. useInsertionEffect Hook for CSS-in-JS Libraries
    10. Example: useInsertionEffect for style injection
    11. 6. Concurrent Features and Automatic Batching
    12. Example: Automatic batching in React 18
    13. React 18 Key Improvements

  4. React State Management Patterns

    1. 1. Local Component State (useState, useReducer)
    2. Example: Choosing between useState and useReducer
    3. 2. State Lifting and Sharing State Between Components
    4. Example: State lifting patterns
    5. 3. State Colocation and Component Responsibility
    6. Example: State colocation best practices
    7. 4. Derived State and Computed Values (useMemo)
    8. Example: Derived state patterns
    9. 5. State Normalization for Complex Data Structures
    10. Example: State normalization patterns (Part 1/2)
    11. Example: State normalization patterns (Part 2/2)
    12. 6. State Machines Pattern with useReducer
    13. Example: State machine patterns with useReducer (Part 1/2)
    14. Example: State machine patterns with useReducer (Part 2/2)
    15. State Management Decision Guide

  5. React Context API and Global State

    1. 1. createContext and Provider Pattern
    2. Example: Creating and providing context
    3. 2. useContext Hook and Consuming Context
    4. Example: Consuming context with custom hooks
    5. 3. Multiple Contexts and Context Composition Patterns
    6. Example: Multiple contexts and composition
    7. 4. Context Performance and Re-render Optimization
    8. Example: Context performance optimization
    9. 5. Context API vs Prop Drilling - When to Use
    10. Example: Comparing approaches
    11. 6. Custom Context Hooks Pattern
    12. Example: Custom context hooks and abstractions
    13. Context API Best Practices

  6. React Forms and Input Handling

    1. 1. Controlled Components and Input State (value, onChange)
    2. Example: Controlled component patterns
    3. 2. Uncontrolled Components with useRef and defaultValue
    4. Example: Uncontrolled components with useRef
    5. 3. Form Validation and Error Handling Patterns
    6. Example: Form validation patterns
    7. 4. Custom Input Components and Form Hooks
    8. Example: Custom input components and hooks
    9. 5. Form Libraries (Formik, React Hook Form, Zod)
    10. Example: Formik and React Hook Form
    11. 6. File Upload and FormData Handling
    12. Example: File upload and FormData
    13. Forms Best Practices

  7. React Event Handling (onClick, onChange, onSubmit)

    1. 1. Event Handler Syntax and Event Objects (e.target, e.preventDefault)
    2. Example: Event handler patterns
    3. 2. Synthetic Events and Cross-browser Compatibility
    4. Example: Synthetic events and cross-browser handling
    5. 3. Event Handler Binding and Performance Optimization
    6. Example: Event handler optimization
    7. 4. Custom Event Handlers and Event Composition
    8. Example: Custom event handlers
    9. 5. Keyboard and Mouse Events (onKeyDown, onMouseEnter)
    10. Example: Keyboard and mouse events
    11. 6. Touch Events and Mobile Interactions (onTouchStart)
    12. Example: Touch events and mobile gestures
    13. Event Handling Best Practices

  8. React Lists and Keys (map, filter)

    1. 1. Array Rendering with map() Method
    2. Example: Basic list rendering patterns
    3. 2. Key Prop Best Practices and Unique IDs
    4. Example: Key prop patterns and anti-patterns
    5. 3. Dynamic List Updates and State Management
    6. Example: Dynamic list operations with immutable state
    7. 4. Conditional List Rendering Patterns
    8. Example: Conditional rendering patterns
    9. 5. List Filtering and Search Implementation
    10. Example: Search and filter implementations
    11. 6. Virtualized Lists (react-window, react-virtualized)
    12. Example: Virtualized list with react-window
    13. Lists and Rendering Best Practices

  9. React Lifecycle and Effects (useEffect)

    1. 1. useEffect Patterns and Dependency Array
    2. Example: useEffect dependency patterns
    3. 2. Effect Cleanup Functions and Memory Leak Prevention
    4. Example: Effect cleanup patterns
    5. 3. useLayoutEffect vs useEffect - When to Use Which
    6. Example: useEffect vs useLayoutEffect timing
    7. 4. Data Fetching with useEffect and Async Functions
    8. Example: Data fetching patterns
    9. 5. Custom Hooks for Reusable Effect Logic
    10. Example: Reusable custom hooks
    11. 6. Effect Performance Optimization and Dependencies
    12. Example: Effect performance optimizations
    13. Effect Best Practices Checklist

  10. React Performance Optimization

    1. 1. React.memo for Component Memoization
    2. Example: React.memo usage patterns
    3. 2. useMemo Hook for Expensive Calculations
    4. Example: useMemo patterns
    5. 3. useCallback Hook for Function Memoization
    6. Example: useCallback patterns
    7. 4. Code Splitting with React.lazy and Suspense
    8. Example: Code splitting patterns
    9. 5. Bundle Size Analysis and Optimization
    10. Example: Bundle optimization techniques
    11. 6. Re-render Optimization and React Profiler
    12. Example: Debugging and fixing re-renders
    13. Performance Optimization Checklist

  11. React Error Boundaries and Error Handling

    1. 1. Error Boundary Class Components
    2. Example: Error boundary implementation
    3. 2. componentDidCatch and getDerivedStateFromError Lifecycle
    4. Example: Using both lifecycle methods
    5. 3. useErrorHandler Hook Patterns (react-error-boundary)
    6. Example: useErrorHandler custom hook
    7. 4. Async Error Handling and Promise Rejections
    8. Example: Async error handling patterns
    9. 5. Error Reporting and Monitoring (Sentry)
    10. Example: Error monitoring integration
    11. 6. Fallback UI and Error Recovery Components
    12. Example: Fallback UI and recovery patterns
    13. Error Handling Best Practices

  12. React Refs and DOM Manipulation (useRef)

    1. 1. useRef Hook for DOM Access and Mutable Values
    2. Example: Basic DOM Element Access
    3. Example: Multiple Refs with Array
    4. Example: Storing Mutable Values
    5. 2. forwardRef API and Ref Forwarding Pattern
    6. Example: Basic Ref Forwarding
    7. Example: Styled Component with Ref Forwarding
    8. Example: Combining Own Ref with Forwarded Ref
    9. Example: TypeScript Ref Forwarding
    10. 3. useImperativeHandle Hook for Custom Ref APIs
    11. Example: Custom Input with Imperative Methods
    12. Example: Modal Component with Imperative API
    13. Example: Video Player with Imperative Controls
    14. 4. Focus Management and Accessibility (a11y)
    15. Example: Auto Focus on Mount
    16. Example: Focus Trap in Modal
    17. Example: Skip Navigation Link
    18. Example: Focus Management in Dynamic Lists
    19. 5. DOM Measurements and Element Properties
    20. Example: Measuring Element Dimensions
    21. Example: Scroll Position Tracking
    22. Example: Intersection Observer with Refs
    23. Example: ResizeObserver for Responsive Components
    24. 6. Third-party Library Integration with Refs
    25. Example: D3.js Chart Integration
    26. Example: Leaflet Map Integration
    27. Example: Monaco Editor Integration
    28. Example: jQuery Plugin Wrapper
    29. Refs and DOM Manipulation Best Practices

  13. React Component Patterns and Design Patterns

    1. 1. Higher-Order Components (HOC) Pattern
    2. Example: Basic HOC with authentication
    3. Example: Props transformation and composition
    4. 2. Render Props and Function-as-Children Pattern
    5. Example: Mouse tracker with render prop
    6. Example: Modern hook alternative (preferred)
    7. 3. Compound Components Pattern and Component APIs
    8. Example: Tabs compound component with context
    9. Example: Controlled compound component
    10. 4. Custom Hooks Pattern for Logic Reuse
    11. Example: Custom hooks for common patterns
    12. Example: Data fetching and debounce hooks
    13. 5. Polymorphic Components and Generic TypeScript Props
    14. Example: Polymorphic Box component
    15. Example: Generic list component
    16. 6. Component Composition vs Inheritance - React Philosophy
    17. Example: Composition patterns (preferred)
    18. Example: Why composition beats inheritance
    19. Advanced Component Patterns Best Practices

  14. React Suspense and Concurrent Features REACT 18+

    1. 1. Suspense Component for Code Splitting (React.lazy)
    2. Example: Basic code splitting with Suspense
    3. Example: Nested Suspense boundaries for granular loading
    4. 2. Suspense for Data Fetching and Async Operations
    5. Example: Suspense with React Query
    6. Example: use() hook for Suspense data fetching (React 19)
    7. 3. Error Boundaries with Suspense Fallbacks
    8. Example: Error Boundary with Suspense integration
    9. Example: Reusable boundary component
    10. 4. Concurrent Rendering and Time Slicing (React 18+)
    11. Example: Concurrent rendering with createRoot
    12. Example: Visualizing concurrent rendering benefits
    13. 5. useTransition Hook for Non-blocking State Transitions
    14. Example: useTransition for responsive search
    15. Example: Tab switching with transitions
    16. Example: Pagination with transitions
    17. 6. Server Suspense and Streaming SSR (Server-Side Rendering)
    18. Example: Node.js streaming SSR setup
    19. Example: Next.js Server Components with Suspense
    20. Example: Selective hydration benefits
    21. Suspense and Concurrent Features Best Practices

  15. React Portals and createPortal API

    1. 1. createPortal API for Modals and Overlays
    2. Example: Basic portal setup
    3. Example: Dynamic portal container
    4. 2. Modal Components with Portal Pattern
    5. Example: Full-featured modal with portal
    6. Example: Modal with animation
    7. 3. Tooltip and Overlay Positioning with Portals
    8. Example: Basic tooltip with positioning
    9. Example: Advanced positioning with Floating UI
    10. 4. Event Bubbling Behavior with Portals
    11. Example: Event bubbling demonstration
    12. Example: Context access in portals
    13. 5. Accessibility (ARIA) with Portal Components
    14. Example: Accessible modal with full ARIA support
    15. Example: Accessible tooltip
    16. 6. Multiple Portal Management and Z-index
    17. Example: Portal manager with context
    18. Example: Modal queue system
    19. Portals and DOM Rendering Best Practices

  16. Server Components and Full-Stack React NEXT.JS 13+

    1. 1. React Server Components (RSC) Fundamentals and Architecture
    2. Example: Server Component basics
    3. Example: Client Component with 'use client'
    4. 2. Client vs Server Component Boundaries and 'use client'
    5. Example: Component composition patterns
    6. Example: Serializable props requirement
    7. 3. Data Fetching in Server Components (async/await)
    8. Example: Data fetching patterns
    9. Example: Streaming with Suspense
    10. Example: Server-only code protection
    11. 4. Server Component Performance Benefits and Zero JS
    12. Example: Bundle size comparison
    13. Example: Performance optimization strategies
    14. 5. Hydration and Client-side State Management
    15. Example: State management patterns
    16. Example: Context providers in Client Components
    17. Example: Avoiding hydration mismatches
    18. 6. Next.js App Router and RSC Integration
    19. Example: Next.js App Router file structure
    20. Example: Dynamic routes and data fetching
    21. Example: Route handlers (API routes)
    22. Server Components and Full-Stack React Best Practices

  17. React Testing and Testing Library

    1. 1. React Testing Library (RTL) Best Practices
    2. Example: Basic RTL test with best practices
    3. Example: Query priority guide
    4. 2. Component Testing and User Interactions (fireEvent, userEvent)
    5. Example: Testing form with validation
    6. Example: Testing async data fetching
    7. 3. Hook Testing with renderHook API
    8. Example: Testing custom hook with state
    9. Example: Testing async hook with API calls
    10. Example: Testing hook with context
    11. 4. Mocking Components, Props, and API Calls
    12. Example: Mocking API calls
    13. Example: Mocking child components
    14. Example: Using Mock Service Worker (MSW)
    15. Example: Testing with fake timers
    16. 5. Integration Testing with React Router and Context
    17. Example: Testing navigation and routes
    18. Example: Testing dynamic routes with params
    19. Example: Testing protected routes
    20. 6. End-to-End Testing (Cypress, Playwright, Vitest)
    21. Example: Cypress E2E test
    22. Example: Cypress custom commands
    23. Example: Playwright E2E test
    24. Example: Playwright with fixtures and page objects
    25. React Testing Best Practices Summary

  18. React DevTools and Debugging

    1. 1. React DevTools Browser Extension (Chrome, Firefox)
    2. Example: Installing React DevTools
    3. Example: Accessing DevTools features
    4. 2. Component Tree Inspector and Props Viewer
    5. Example: Editing props and state in DevTools
    6. Example: Debugging hooks with DevTools
    7. Example: Using "Rendered by" to trace component tree
    8. 3. React Profiler and Performance Analysis
    9. Example: Using Profiler to identify performance issues
    10. Example: Profiler API for custom measurements
    11. Example: Analyzing "Why Did This Render"
    12. 4. State and Context Debugging Tools
    13. Example: Debugging context issues
    14. Example: Using Redux DevTools with useReducer
    15. Example: Custom state debugging hooks
    16. 5. Time-travel Debugging and State History
    17. Example: Using Profiler for time-travel debugging
    18. Example: Redux DevTools time-travel
    19. Example: Building custom history tracker
    20. 6. Production Debugging and Error Tracking (Source Maps)
    21. Example: Sentry setup for React
    22. Example: LogRocket integration
    23. Example: Production error boundary with reporting
    24. Example: Source map configuration for production debugging
    25. React Developer Tools and Debugging Summary

  19. React Ecosystem and Popular Libraries

    1. 1. React Router and Client-side Navigation (v6)
    2. Example: React Router v6 setup
    3. Example: Nested routes and layouts
    4. 2. State Management Libraries (Redux, Zustand, Jotai, Recoil)
    5. Example: Redux Toolkit setup
    6. Example: Zustand - minimal state management
    7. 3. UI Component Libraries (MUI, Chakra UI, shadcn/ui)
    8. Example: Material-UI (MUI) setup
    9. Example: Chakra UI setup
    10. Example: shadcn/ui - copy-paste approach
    11. 4. CSS-in-JS Libraries (styled-components, Emotion, CSS Modules)
    12. Example: styled-components
    13. Example: Tailwind CSS with React
    14. Example: CSS Modules
    15. 5. Form Libraries (Formik, React Hook Form, Zod)
    16. Example: React Hook Form with Zod
    17. Example: Dynamic fields and arrays
    18. 6. Data Fetching Libraries (SWR, React Query, TanStack Query)
    19. Example: React Query (TanStack Query)
    20. Example: SWR - simple data fetching
    21. Example: Infinite scroll with React Query
    22. React Ecosystem Integration Summary

  20. React Security Best Practices

    1. 1. XSS Prevention and Input Sanitization (DOMPurify)
    2. Example: Safe rendering of user input
    3. Example: Input sanitization library
    4. 2. dangerouslySetInnerHTML Safe Usage and Alternatives
    5. Example: Safe dangerouslySetInnerHTML usage
    6. 3. Props Validation and Type Checking (PropTypes, TypeScript)
    7. Example: PropTypes validation
    8. Example: TypeScript with runtime validation
    9. 4. Authentication and Authorization Patterns (JWT, OAuth)
    10. Example: JWT authentication with refresh tokens
    11. Example: Protected routes and role-based access
    12. 5. Secure State Management and Sensitive Data
    13. Example: Secure state management
    14. 6. Content Security Policy (CSP) and React Apps
    15. Example: CSP header configuration
    16. Example: Using CSP nonces with React
    17. React Security Best Practices Summary

  21. React with TypeScript Integration

    1. 1. Component Props TypeScript Interfaces and Types
    2. Example: Component props interfaces
    3. Example: Discriminated unions for variant props
    4. 2. Hook Type Definitions and Generic Hooks (useState
    5. Example: Typed React hooks
    6. Example: Generic custom hooks
    7. 3. Event Handler Type Safety (React.MouseEvent, React.ChangeEvent)
    8. Example: Type-safe event handlers
    9. Example: Generic event handler types
    10. 4. Context API TypeScript Patterns and Type Inference
    11. Example: Type-safe context with custom hook
    12. Example: Context with reducer pattern
    13. 5. Custom Hook Type Safety and Return Types
    14. Example: Custom hook with type inference
    15. Example: Advanced generic hooks
    16. 6. React.FC vs Function Component Types - Best Practices
    17. Example: React.FC vs function declaration
    18. Example: Component type patterns
    19. React TypeScript Integration Summary

  22. React Performance Monitoring and Profiling

    1. 1. React Profiler API and Performance Metrics
    2. Example: React Profiler API usage
    3. Example: Production performance monitoring
    4. 2. Bundle Size Analysis and Code Splitting Strategies
    5. Example: Advanced code splitting patterns
    6. Example: Bundle analysis and optimization
    7. 3. Memory Leak Detection and Prevention Techniques
    8. Example: Memory leak prevention patterns
    9. Example: Memory leak detection utilities
    10. 4. Re-render Analysis and Optimization with Why-Did-You-Render
    11. Example: Re-render optimization patterns
    12. Example: Advanced re-render debugging
    13. 5. Core Web Vitals and React Performance (LCP, FID, CLS)
    14. Example: Core Web Vitals optimization
    15. Example: React performance best practices
    16. 6. Performance Monitoring Tools (Lighthouse, React DevTools)
    17. Example: Production monitoring setup
    18. Example: Multi-tool monitoring setup
    19. React Performance Monitoring and Optimization Summary