online-status:React Hook的在线状态

@rehooks/online-status React钩子用于订阅online / offline事件以及navigator.onLine属性以查看当前状态 您需要在^16.8.4处安装react ， react-dom等 安装 yarn add @rehooks/online-status 用法 import useOnlineStatus from '@rehooks/online-status' ; function MyComponent ( ) { const onlineStatus = useOnlineStatus ( ) ; return ( < div> < h1> You are { onlineStatus ? "Online" : "Offline" } &lt; / h1 > &lt; / div > ) ; }