Why is one giant React component a mistake?
Because it is hard to read, change, and reuse. A page with everything in one component becomes a maintenance nightmare. Split into smaller focused components from the start, by responsibility.
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More FAQs in Common Mistakes When Setting Up Initial React Components
Because writing buttons and inputs inline everywhere causes style drift and repetition. Building Button, Input, and Card once keeps styling consistent across the app and saves time as the project grows.
To avoid every page re-implementing the header and sidebar. Use a shared layout component, often with an Outlet for nested routes, so the shared UI lives in one place and every page uses it.
No. Hardcoding misses the data-fetching skills real apps need. Fetch from the backend, even in early stages, so you practice the loading, error, and data-shape handling that real projects require.
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