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Phase 11 · Next.js

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App Router

Part of the Frontend Developer Roadmap.

Summary

Next.js's modern file-system-based router (the `app/` directory) built on React Server Components, layouts, and nested routing conventions.

How to Learn This

1Convert a simple multi-page idea into an `app/` directory route structure.
2Learn the special files: `page.tsx`, `layout.tsx`, `loading.tsx`, `error.tsx`.
3Practice nested layouts that share UI across multiple routes.

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More topics in Next.js

Pages Router SSR CSR SSG ISR Server Components Client Components Dynamic Routes Metadata Image Optimization Middleware Server Actions API Routes SEO Deployment

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