4 posts · page 1 of 1
How error.tsx, global-error.tsx, and not-found.tsx work in the Next.js App Router — when each one fires, how segments isolate failures, and patterns for recovery and observability.
Compare the Next.js App Router and Pages Router: routing, data fetching, layouts, server components, and how to decide for new and existing projects.
Master dynamic routes, catch-all segments, and optional catch-alls in Next.js. Learn how the file-based router maps URLs to components with concrete examples.
How parallel slots and intercepting routes power dashboards, modals, and tabbed UIs in the Next.js App Router — the file conventions, when to reach for each, and the patterns that hold up in production.