Difficulty: 5/10pages, routing, data fetchingA route group can be created by wrapping a folder's name in parenthesis:1(folderName)2folders in parenthesis will be omitted from the URLScenario Questions0-2 years experience1Can you walk me through the steps you’d take to add a new static page called about.js to an existing Next.js project?2If you need a simple API endpoint that returns a JSON list of users, how would you create it in Next.js?2-5 years experience1We have a product‑detail page that should be generated at build time but also support new products added after deployment. How would you implement that with Next.js?Follow-up QuestionsWhat would you check if the page you added returns a 404?How do you test that an API route works after deployment?Can you explain a pitfall when using getStaticProps with external data?Suggest Improvement
