frontend-framework-nextjs

Next.js Server Components fetch data on the server to reduce bundle size, while Client Components handle interactivity and state. Differentiating them allows developers to optimize rendering performance within the App Router architecture.

Choosing between SSR, SSG, and ISR depends on your data freshness needs: SSR renders per request, SSG builds static pages at build time, and ISR regenerates static pages incrementally. Selecting the right strategy optimizes performance and SEO.

Implement data fetching in Next.js App Router layouts by fetching directly within Server Components. This approach leverages the server to retrieve data, passing it down to child layouts and pages, which streamlines rendering and avoids client-side waterfall requests.

Use Incremental Static Regeneration instead of Static Site Generation when your content updates frequently but you want static performance. ISR updates static pages in the background without requiring a full rebuild, ensuring data freshness without sacrificing speed.

Yes, the Next.js App Router supports dynamic routing and built-in loading states. You can structure your application using layouts to wrap pages, while automatically displaying loading UI during data fetching or route transitions to improve user experience.