Modern React Development Patterns

Presented by John Developer on September 25, 2024

Talk Overview

An in-depth exploration of modern React development patterns and best practices for building maintainable, performant applications in 2024.

Topics Covered

React Hooks Deep Dive

• useState and useEffect best practices
• Custom hooks for code reuse
• useCallback and useMemo for optimization
• useContext for state management

Advanced Patterns

• Compound component pattern
• Render props vs custom hooks
• Higher-order components (HOCs) revisited
• Error boundaries and error handling

Performance Optimization

• React.memo and when to use it
• Virtualization for large lists
• Code splitting with React.lazy
• Bundle analysis and optimization

State Management

• Local vs global state decisions
• Context API patterns
• Third-party state management libraries
• Server state vs client state

Testing Strategies

• Unit testing React components
• Integration testing with React Testing Library
• Mocking strategies and best practices
• End-to-end testing considerations

TypeScript Integration

• Props typing patterns
• Generic components
• Utility types for React
• Common TypeScript pitfalls

Live Coding Examples

The presentation included several live coding demonstrations:

1. Custom Hook Creation: Built a useLocalStorage hook from scratch
2. Performance Optimization: Demonstrated React.memo and useMemo with a real example
3. Error Boundary: Created a reusable error boundary component
4. Context Pattern: Implemented a theme provider with TypeScript

Resources

• React Documentation
• React TypeScript Cheatsheet
• React Testing Library
• Code examples from the presentation available on GitHub

Discussion Points

The session sparked great discussions about:

• When to reach for external state management libraries
• Server-side rendering considerations
• React 18 features and migration strategies
• Team adoption of TypeScript in React projects