react-dev

Type-safe React components use TypeScript generics and strict prop typing to catch errors at compile time. Define generic component signatures with constrained type parameters, apply event handler typing for mouse, keyboard, and form events, and leverage React 18-19 features like Server Components for end-to-end type safety across your application.

Server Components and Server Actions let you execute logic on the server while maintaining type safety through TypeScript. Define server functions with clear boundaries, use Server Actions to handle mutations, and integrate them with client components to reduce bundle size and improve data fetching security.

TanStack Router provides end-to-end type-safe routing with full TypeScript support. Define typed routes with route parameters, loaders, and actions, then access route data and navigation with complete type inference, eliminating runtime routing errors and improving developer experience.

Server Components are optional but recommended for type-safe patterns. Generic components, event typing, and proper TypeScript configuration work independently. Server Components enhance type safety at server-client boundaries and enable Server Actions, but typed components and TanStack Router integration work with traditional client-side React.

Form and keyboard events require specific TypeScript event types like FormEvent, KeyboardEvent, and MouseEvent with proper generic parameters. Annotate event handlers with these types, use event.currentTarget for type-narrowed access to form elements, and leverage TypeScript's strict mode to catch type mismatches.

Generic components accept type parameters that consumers define, enabling reusable patterns across different data types while preserving full type safety. This approach eliminates prop casting, improves IntelliSense suggestions, and makes component contracts explicit—compared to standard components which rely on any or union types.