法治政府建设内容网站公开课搜索引擎seo是什么
除了之前提到的 useState、useEffect、useContext、useRef、useMemo 和 useCallback,还有一些其他常用的 React Hooks,它们提供了额外的功能和灵活性。以下是其中一些常见的 React Hooks:
1:useReducer:用于在函数组件中管理复杂的状态逻辑,类似于 Redux 的 reducer。
import React, { useReducer } from 'react';function reducer(state, action) {switch (action.type) {case 'INCREMENT':return { ...state, count: state.count + 1 };case 'DECREMENT':return { ...state, count: state.count - 1 };default:return state;}
}function MyComponent() {const [state, dispatch] = useReducer(reducer, { count: 0 });const increment = () => {dispatch({ type: 'INCREMENT' });};const decrement = () => {dispatch({ type: 'DECREMENT' });};return (<div><p>Count: {state.count}</p><button onClick={increment}>Increment</button><button on