React Hooks
- Custom Hooks: Building reusable logic encapsulated in hooks.
- useRef and useImperativeHandle: Managing and interacting with refs.
- useContext and useReducer: Context API with reducers for state management.
Performance Optimization
- Memoization: Using
React.memo
,useMemo
, anduseCallback
to prevent unnecessary re-renders. - Virtualization: Rendering only the visible portion of large lists with libraries like
react-window
orreact-virtualized
. - Code Splitting: Lazy loading components with
React.lazy
andSuspense
.
State Management
- Redux: Advanced patterns with Redux like middleware, selectors, and thunks.
- Recoil: Using Recoil for managing state with a more straightforward API compared to Redux.
- Context API: Effective usage and optimization with the Context API.
Server-Side Rendering
- Next.js: Using Next.js for server-side rendering and static site generation.
- Hydration: Understanding the hydration process and its impact on performance.
Testing
- Jest and React Testing Library: Advanced testing strategies, including mocking, spying, and testing hooks.
- End-to-End Testing: Using tools like Cypress for comprehensive end-to-end tests.
TypeScript with React
- Type Safety: Defining prop types, state, and context with TypeScript.
- Generics and Advanced Types: Leveraging TypeScript’s advanced features for better type safety.
React Native
- Advanced Components: Building and optimizing complex components.
- State Management: Managing state in React Native with libraries like Redux and MobX.
- Performance: Techniques to improve performance in React Native applications.
Animation
- React Spring: Using React Spring for advanced animations.
- Framer Motion: Creating complex animations with Framer Motion.
Internationalization
- Libraries: Using libraries like
react-intl
ori18next
for internationalization. - Contextualization: Managing and switching between multiple languages in an application.
Advanced Patterns
- Higher-Order Components (HOC): Creating and using HOCs effectively.
- Render Props: Leveraging render props for reusability.
- Compound Components: Building components that work together seamlessly.
React Fiber
- Concurrent Mode: Understanding and utilizing concurrent features in React.
- Suspense for Data Fetching: Using Suspense to manage asynchronous data fetching.
GraphQL
- Apollo Client: Integrating Apollo Client for GraphQL queries and mutations.
- Relay: Using Relay for efficient data fetching with GraphQL.
Web Components
- Integrating: Using Web Components within React applications.
- Custom Elements: Creating custom elements that work with React.
Security
- XSS Protection: Preventing Cross-Site Scripting attacks in React applications.
- Authentication: Implementing secure authentication and authorization.