The answer
Because a successful fetch with no items is not an error. Show an empty state with a helpful message like 'No results found', so the user understands why nothing is shown instead of seeing a blank screen.
Common API Integration Mistakes in React Frontends
Why handle empty API results separately?
More FAQs in Common API Integration Mistakes in React Frontends
Usually because you forgot the dependency array, or because you included a state variable you update inside the effect. Each update triggers another run. Fix the dependency array with the hooks lint plugin.
Because hardcoding localhost means production calls the wrong backend. Environment variables let each environment, development and production, use the right value without code changes.
Use an AbortController. Pass its signal to fetch, and abort it in the cleanup function or when a new fetch starts. This cancels outdated requests so only the latest result is used, preventing stale data overwriting fresh data.
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