[Next.js] not-found.js (ts(x)) 페이지 생성은 app폴더 바로 밑에 하기

The not-found file is used to render UI when the notFound function is thrown within a route segment. Along with serving a custom UI, Next.js will return a 200 HTTP status code for streamed responses, and 404 for non-streamed responses.

 

Good to know: In addition to catching expected notFound() errors, the root app/not-found.js file also handles any unmatched URLs for your whole application. This means users that visit a URL that is not handled by your app will be shown the UI exported by the app/not-found.js file.

 

 

https://nextjs.org/docs/app/api-reference/file-conventions/not-found

File Conventions: not-found.js | Next.js