Send message to all connected clients socket.io

Question

I am using below code to send the message to a particular client sessionId.

this.sockets[sessionId].json().send(message)

But i don't know, How to send message to all connected clients(browser) instead of sending to one.

Answer 1

Look into this Cheatsheet

sending to sender-client only

socket.emit('message', "this is a test");

sending to all clients, include sender

io.emit('message', "this is a test");

sending to all clients except sender

socket.broadcast.emit('message', "this is a test");

sending to all clients in 'game' room(channel) except sender

socket.broadcast.to('game').emit('message', 'nice game');

sending to all clients in 'game' room(channel), include sender

io.in('game').emit('message', 'cool game');

sending to sender client, only if they are in 'game' room(channel)

socket.to('game').emit('message', 'enjoy the game');

sending to all clients in namespace 'myNamespace', include sender

io.of('myNamespace').emit('message', 'gg');

sending to individual socketid

socket.broadcast.to(socketid).emit('message', 'for your eyes only');