← React, the Mental Model
Lesson 4 · atom React, the Mental Model
Hooks & Composition
Extract reusable logic into custom hooks.
Before you start
A custom hook is a function starting with use that calls other hooks. That's the entire API. It's how you share *stateful logic* between components — the thing render props and HOCs used to do, minus the nesting.
5 exercises·up to 72 XP·5/5 hearts