Subscription to update the list of users online

CometServer().subscription("track_online.subscription", function(msg)
    // Processing of the event that someone went to the site and subscribed to the channel track_online
CometServer().subscription("track_online.unsubscription", function(msg)
    // Handling an event that someone left the site and / or unsubscribed from the track_online channel

Open this page from different browsers and you will see incoming messages from CppComent about other users who opened or closed this page in other devices.



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