Javascript: listen to server

[Macinbomzh]

Is there a way in JavaScript to command the browser to listen to a specific location? i.e. a stream of data

[gits]

could you explain that requirement in more detail please? ... you could always poll ... but it is a bit more advanced in case you want to have a persistent connection due to the stateless character of http connections ...

kind regards

[Macinbomzh]

I am writing a live-chat, clients will send data to server and the server will send the data to all clients currently connected.
I need the client to listen for that data.

[gits]

then the easiest way would be to poll a service with an interval like:

var interval = window.setInterval(function() {
    // service call logic here, could even be a function-cll with the logic
}, 30000);

this calls the commented code every 30s ...

kind regards