Build React 18+ applications and components

Build React 18+ components with Server Components

Building modern React architectures with Server Components and minimal client-side state.

• · Component requirements, state needs, data fetching patterns

• · React 18+ TypeScript components: Server Components, Suspense boundaries, useActionState forms, custom hooks

• · React 19
• · TypeScript
• · Next.js App Router (optional)
• · TanStack Query (optional)
• · React Testing Library

TypeScript strict mode enabled; Node environment ready

Type errors if generics not constrained; stale closures if dependencies array incomplete; Server/Client boundary violations

• · React 19 useActionState form example included
• · Custom hook cleanup patterns shown
• · Explicit constraint: use TypeScript strict mode