15 个很有用的自定义 React Hooks
React 提供了自定义 Hooks 的特性,我们可以根据这个特性创建出很多有意思的功能,今天就来分享一些个人认为还不错的 Hooks,共计 15 个。
如果对于 React Hooks 还不是特别熟悉的话,可以先参阅这篇文章:
useClippy
是一个用来读取或写入粘贴板的自定义 Hook,支持 TypeScript。
代码示例:
import useClippy from 'use-clippy';
export default () => {
const [clipboard, setClipboard] = useClippy();
return (
);
};
useWindowSize
用于获取浏览器窗口大小,默认按 方式获取,当然也可以以 方式获取。
代码示例:
import { useWindowSize } from '@react-hook/window-size';
// import { useWindowSize } from '@react-hook/window-size/throttled';
export default (props) => {
const [width, height] = useWindowSize();
return (
width: {width}, height: {height}
);
};
useMediaQuery
代码示例:
import React from 'react';
import { useMediaQuery, useMediaQueries } from '@react-hook/media-query';
// Using a single media query
// export default () => {
// const matches = useMediaQuery('only screen and (min-width: 400px)');
// return `Matches? ${matches ? 'Matched!' : 'Nope'}`;
// };
// Using multiple media queries
export default () => {
const { matches, matchesAny, matchesAll } = useMediaQueries({
screen: 'screen',
width: '(min-width: 400px)',
});
return (
- Screen matched? {matches.screen ? 'Yes' : 'No'}
- Width matched? {matches.width ? 'Yes' : 'No'}
- All matched? {matchesAll ? 'Yes' : 'No'}
- Any matched? {matchesAny ? 'Yes' : 'No'}
);
};
useAsync
用于优雅地解决、取消和处理异步函数或 Promise,并且当组件卸载时还可以自动清除它们。
代码示例:
import { useAsync } from '@react-hook/async';
export default () => {
const [{ status, cancel, error, value }, call] = useAsync(() => {
return new Promise((resolve) => setTimeout(() => resolve('Loaded'), 3000));
});
switch (status) {
case 'loading':
return (
Loading...
);
case 'cancelled':
return (
Cancelled.
);
case 'error':
return `Error: ${error}`;
case 'success':
return value || 'Success!';
default:
return ;
}
};
useBrowserContextCommunication
使用 为不同浏览器上下文(选项卡,iframe,窗口)之间的通信提供简单的解决方案。
代码示例:
import useBrowserContextCommunication from 'react-window-communication-hook';
export default () => {
// communicationState 是一个 {lastMessage, messages} 对象,用于从其它的浏览器上下文接收数据
const [communicationState, postMessage] = useBrowserContextCommunication(
'channel'
);
const [status, setStatus] = useState('login');
function logout() {
setStatus('logout');
postMessage('logout');
}
const isLogout = [communicationState.lastMessage, status].includes('logout');
return (
状态:{isLogout ? '已退出' : '已登录'}
);
};
可以在浏览器里打开两个 Tab,然后在其中一个页面点击「退出」按钮,会发现两个 Tab 的页面都发生了变化。
useScript
用于动态加载外部脚本,并提供了 回调用于得到脚本加载完成的时间。
官方文档:https://github.com/hupe1980/react-script-hook
代码示例:
import { StripeProvider } from 'react-stripe-elements';
import useScript from 'react-script-hook';
export default () => {
const [loading, error] = useScript({ src: 'https://js.stripe.com/v3/' });
if (loading) return Loading Stripe API...
;
if (error) return Failed to load Stripe API: {error.message}
;
return (
Hello
);
};
当然也可以以回调函数的形式使用:
useScript({
src: 'https://js.stripe.com/v3/',
onload: () => console.log('Script loaded!')
})
useLocalStorage
代码示例:
import { useLocalStorage, writeStorage } from '@rehooks/local-storage';
let counter = 0;
export default () => {
const [counterData] = useLocalStorage('counter');
return (
<>
{counter}
>
);
};
useIdb
使用浏览器中的 来存储数据,跟 类似。
代码示例:
import { useIdb } from 'react-use-idb';
export default () => {
const [value, setValue] = useIdb('my-key', 'foo');
return (
Value: {value}
);
};
use-mouse-action
用于监听点击事件时鼠标(也可能是触摸板)按下或弹起。
代码示例:
import useMouseAction from 'use-mouse-action';
export default () => {
const props = useMouseAction({
onAction: () => console.log('You clicked or mouse downed me!'),
down: true,
});
return (
);
};
useDebounce
用于延迟 或者其它回调函数的执行。
代码示例:
import {useDebounce, useDebounceCallback} from '@react-hook/debounce'
const Component = (props) => {
// at a basic level, used just like useState
const [value, setValue] = useDebounce('initialValue')
}
const useMyCallback = (initialState, wait, leading) => {
// this is the same code useDebounce() uses to debounce setState
const [state, setState] = useState(initialState)
return [state, useDebounceCallback(setState, wait, leading)]
}
useThrottle
用于稀释 或者其它回调函数的执行频率。
代码示例:
import {useThrottle, useThrottleCallback} from '@react-hook/throttle'
const Component = (props) => {
// at a basic level, used just like useState
const [value, setValue] = useThrottle('initialValue')
}
const useMyCallback = (initialState, fps, leading) => {
// this is the same code useThrottle() uses to throttle setState
const [state, setState] = useState(initialState)
return [state, useThrottleCallback(setState, fps, leading)]
}
useOnlineStatus
用于获取当前的网络状态,内部通过监听 及 事件实现。
代码示例:
import useOnlineStatus from '@rehooks/online-status';
export default () => {
const onlineStatus = useOnlineStatus();
return (
You are {onlineStatus ? 'Online' : 'Offline'}
);
};
useDocumentTitle
用于更新页面标题。
代码示例:
import useDocumentTitle from '@rehooks/document-title';
export default () => {
useDocumentTitle('Page Title');
return ;
};
useNetworkStatus
暴露了 对象,用于实时获取网络状态。
代码示例:
import useNetworkStatus from '@rehooks/network-status';
export default () => {
let connection = useNetworkStatus();
return (
downlink: {connection.downlink}
effectiveType: {connection.effectiveType}
rtt: {connection.rtt}
saveData: {connection.saveData ? 'yes' : 'no'}
);
};
useSpeechSynthesis
通过使用 提供了语音识别及文字转语音的能力,还可以识别中英文。
代码示例:
import { useSpeechSynthesis, useSpeechRecognition } from 'react-speech-kit';
export default () => {
const [value, setValue] = useState('');
const { speak } = useSpeechSynthesis();
const { listen, listening, stop } = useSpeechRecognition({
onResult: (result) => {
setValue(result);
},
});
return (
);
};
可以按住 按钮不放随便说一句话,它会自动识别录入到文本框里,然后再点击 按钮,它会自动识别文本框中的内容并语音播放。