Client Components

Summary

Components marked with `'use client'` that run in the browser and can use state, effects and event handlers — needed for any interactivity.

• 1Add `'use client'` to a component that needs `useState` or an `onClick` handler.
• 2Learn to keep the client-component boundary as small and deep as possible for performance.
• 3Practice passing server-fetched data into a client component as props.