A Guided Tour of React Hooks
summary
Covers concrete mechanics: how Hooks store state in indexed slots, four bread‑and‑butter APIs (useState, useEffect, useReducer, useContext), and building reusable hooks. Shows working examples: a people counter, a three‑field login form, a light‑switch reducer, and a Reddit fetch that initially fires repeatedly until the dependency array fix prevents repeated JSON requests. Demonstrates custom hooks including a useToggle implemented with useCallback to preserve referential equality, and explains effect cleanup and when to prefer reducers or Redux.
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chapters (6)
- 0:00Start
- 4:37React Hooks a guided tour
- 5:14Hooks are additive.
- 13:07React Hooks useReducer
- 16:232. Update logic is complex
- 28:20Custom Hooks
