react-patterns

React component patterns for scalable user interfaces include Container/Presentational, Higher-Order Components, Render Props, Custom Hooks, and Compound Components. These patterns improve code organization, reusability, and maintainability across complex frontend architectures.

To share stateful logic between React components, you can use Custom Hooks, Render Props, or Higher-Order Components. Extracting logic into a Custom Hook makes both the hook and the component more reusable and easier to test.

The Container/Presentational pattern in React separates data-fetching and state management logic from UI rendering. Use it to improve component maintainability and reusability, though modern React often favors Custom Hooks for similar separation of concerns.

Controlled and uncontrolled components define how React manages form state. Controlled components have their state driven by React, while uncontrolled components maintain their own internal state via refs, offering different trade-offs for form state management.

Compound Components in React allow multiple components to implicitly share state and logic. This pattern enables flexible UI composition where parent components manage shared state, reducing prop drilling and improving developer experience when building complex interfaces.

The State Reducer pattern in React does not require a specific architecture, but it demands a solid understanding of state management. It inverts control by letting external components specify state transitions, reducing complexity in highly customizable component libraries.