presentational-container-pattern

To separate business logic from UI rendering in React, use the presentational and container pattern. Container components or hooks manage data fetching and pass data as props to presentational components that strictly handle rendering.

The presentational and container pattern is a React architecture that decouples data fetching from UI rendering. Presentational components receive data via props to render views, while container components handle the underlying business logic and state management.

You can replace container components with React hooks to simplify code architecture. Custom hooks handle the data fetching and business logic, passing the required state and functions directly down to your presentational components for rendering.

Separating UI from logic significantly improves component testability and reuse. Presentational components become pure functions of props that are easy to test, while container logic can be validated independently without rendering overhead.

Use container components for complex component trees requiring explicit lifecycle management, and prefer hooks for simpler code architectures. Both approaches enforce clear separation of concerns between data access and presentation rendering.