React 19 Hooks Update: What Still Works and What’s Gone

Description

React 19 changes everything — and some of your favorite React hooks like useEffect, useMemo, and useCallback just got a major downgrade. In this video, we’ll break down how React 19’s Server Components, Server Actions, and the new compiler make old hooks nearly obsolete. You’ll learn: ✅ Why useEffect is “mostly dead” and what replaces it ✅ How data fetching now happens before render ✅ What hooks still matter (useState, useLayoutEffect, useTransition) ✅ How React 19’s compiler handles memoization automatically If you’re upgrading to React 19 or just curious about the future of hooks, this quick explainer will save you hours of confusion. #React19 #ReactHooks #useEffect #ServerComponents #WebDev #JavaScript #Frontend @DevDoseJS