React has changed, your Hooks should too
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Modern React development has evolved beyond overusing useEffect. React 18/19 introduces better patterns for handling async data, including useSyncExternalStore for subscriptions, useDeferredValue for performance optimization, and useEffectEvent for stable callbacks. The shift emphasizes keeping derived state in render, using effects only for true side effects, and building custom Hooks for encapsulation. Server Components and data-first render flows are changing how developers structure applications, moving away from Swiss Army knife useEffect patterns toward cleaner, more maintainable architecture that separates domain logic from UI concerns.
Table of contents
The useEffect trap: doing too much, too oftenCustom Hooks: not just reusability, but true encapsulationSubscription-based state with useSyncExternalStoreSmoother UIs with transitions & deferred valuesTestable and debuggable HooksBeyond Hooks: toward data-first React appsHooks as architecture, not syntax5 Comments
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