HowToCodePage

Next.js

Full-stack React with routing and server rendering.

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This course has 3 lessons. Start with the first one and use the next / previous links at the bottom of each lesson — the sidebar keeps the whole course in order.

Lessons

  1. File-based routing and layoutsHow folders in app/ become URLs, how nested layouts persist across navigation, and the special files that handle loading and errors.
  2. Data fetching and server componentsFetch on the server, choose your caching deliberately, keep secrets out of the client bundle, and mutate data with server actions.
  3. Building and deployingWhat next build produces, how to read the route summary, and the deployment targets for a Node server, a container or static hosting.

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Last refreshed 2026-09-17.