To check whether a user is online or offline in JavaScript, You have to listen for the events online
and offline
on the window
in JavaScript.
Check if User is online
Add an online
event listener to the window
like this,
// to check if user is online
// add an online event listener
// to window
window.addEventListener("online", (event) => {
console.log("User is Online ✅");
});
Check if User is offline
Add an offline
event listener to the window
like this,
// to check if user is offline
// add an offline event listener
// to window
window.addEventListener("offline", (event) => {
console.log("User is Offline 🚫");
});