React Lazy Loading Components

React.lazy and Suspense enable code splitting for better performance. Here's how to use them effectively.

Basic Lazy Loading#

Route-Based Code Splitting#

Multiple Suspense Boundaries#

Named Exports#

Preloading Components#

Error Handling#

Conditional Loading#

Modal/Dialog Loading#

Skeleton Loading#

Code Splitting Strategies#

Webpack Magic Comments#

Testing Lazy Components#

Best Practices#

Conclusion#

React.lazy and Suspense enable powerful code splitting for better initial load times. Use route-based splitting for page components, lazy load heavy components and modals, and provide meaningful loading states. Preload components on user interaction hints for better perceived performance. Always wrap lazy components with error boundaries for production reliability.