Answer
Fetching in useEffect runs after rendering, causing UI flicker. Modern React encourages server components or framework-level data loading.
Quick Answer
useEffect data fetching creates a client-side waterfall: render → useEffect fires → fetch → re-render. In React 18+, the preferred pattern is fetching in Server Components (zero client cost), using data-fetching libraries like SWR or React Query, or using the new use hook. useEffect for fetching is also problematic in Strict Mode's double-fire behavior.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ