How do loading.js and error.js integrate with Suspense and Error Boundaries?
Tests grasp of App Router conventions wrapping React primitives. loading.js suspends its segment for instant navigation feedback; error.js adds a client Error Boundary for child segment crashes. Wrong: assuming they are server-only or replace manual usage.
Your understanding of how Next.js App Router file conventions map to core React patterns for streaming and resilience. loading.js automatically wraps a route segment in a React Suspense boundary, showing fallback UI immediately during server renders or navigation; error.js instantiates a client-side React Error Boundary that isolates crashes in nested segments without breaking the root layout. Wrong: treating them as server-only logic or believing they eliminate the need for manual Suspense and Error Boundaries in client components.
Read the original → nextjs.org
- #next.js
- #app router
- #react suspense
- #error boundaries
- #streaming
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