Why add loading and error states from the start in React?
Because if you build only the success case, the UI breaks when you add fetching, since there is no loading or error handling. Add these from the start, even with stubs, so the foundation is solid.
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More FAQs in Common Mistakes When Setting Up Initial React Components
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.
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.
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