How to unsubscribe from a socket.io subscription?

Question

Suppose there are objects making subscriptions to a socket server like so:

socket.on(\'news\', obj.socketEvent)

These objects have a short life

Answer 1

If you want to create listeners that "listens" only once use socket.once('news',func). Socket.io automatically will distroy the listener after the event happened - it's called "volatile listener".