Swizec Teller • 9/23/2025

You may be looking for a useSyncExternalStore

This React-focused article critiques a common pattern of using useEffect to subscribe to external data sources and update state, which can cause jank during server-side rendering. It introduces useSyncExternalStore as a superior solution, providing a cleaner API, explicit subscription handling, and the ability to specify server-side default values to improve performance and hydration.

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#React #useeffect #server-side rendering