react-native

To separate React Native screen logic from rendering, extract side effects and data fetching into custom hooks. This keeps your functional components focused purely on UI presentation, making the screens predictable and significantly easier to test.

The best way to manage state in React Native is to use local component state first, Zustand for global app state, and React Query for server state. This pragmatic escalation prevents global store bloat and keeps data fetching isolated.

To organize iOS and Android platform-specific code in React Native, use platform-specific file splits rather than inline conditionals. This approach minimizes Platform.select complexity and keeps your platform-specific implementations cleanly separated.

To write deterministic tests for React Native components and hooks, use React Native Testing Library patterns. By standardizing explicit prop typing and extracting logic into hooks, you ensure your components behave predictably during test execution.

Your React Native component becomes hard to test because mixing data fetching with UI creates unpredictable side effects. Extracting side effects into custom hooks enforces explicit prop interfaces, yielding deterministic component testing.

Yes, you can use TypeScript to enforce explicit prop typing in React Native presentation components. Defining clear interfaces for your props keeps your UI predictable and ensures your functional components remain testable.