React Js Detect Internet Connection
React Js Detect Internet Connection:In React.js, you can detect internet connectivity by using the "navigator.onLine" property provided by the browser's navigator object. By listening to the "online" and "offline" events, you can update the state of your React component accordingly
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How can you detect internet connectivity in a React.js application?
This code snippet demonstrates how to detect the internet connection status using ReactJS. It sets up a functional component called App
, which utilizes the useState
and useEffect
hooks from React.
The initial state of isOnline
is determined by the window.navigator.onLine
property, which indicates whether the user is currently connected to the internet.
The useEffect
hook is used to add event listeners for the online
and offline
events triggered by the browser. When the user goes online or offline, the respective event handlers (handleOnline
and handleOffline
) update the isOnline
state accordingly using the setIsOnline
function.
To prevent memory leaks, the event listeners are removed when the component unmounts by returning a cleanup function from the useEffect
hook.
Finally, the rendered JSX displays a message indicating whether the user is online or offline based on the isOnline
state.