What are Socket.IO events and how do they work?
Socket.IO events are custom events that allow real-time communication between the client and server. They enable the sending and receiving of messages, notifications, and data.
Can you give me an example of a Socket.IO event?
Sure! A common event is 'message'. You can emit a message from the client using socket.emit('message', data)
and listen for it on the server with socket.on('message', callback)
.
How do I handle multiple events in Socket.IO?
You can handle multiple events by defining different event listeners for each event type. For example, you can have socket.on('event1', callback1)
and socket.on('event2', callback2)
.
What happens if an event is emitted but no listener is registered?
If an event is emitted without a registered listener, it will simply be ignored. No error will occur, but the data will not be processed.
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