- Documents - [Built-in React DOM Hooks – React](https://react.dev/reference/react-dom/hooks) ## WHAT ### What it is - 以 `use` 开头的函数被称为 **Hook**。 - React Hook 就是函数组件里的小工具，让你不用写 class 也能搞定状态、生命周期、逻辑复用 ## Build-in Hooks - useState: [[React - 状态管理 State, setState, useState]] - [[React - useCallback & useMemo]]