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socket emit cheat sheet

Annoyed Alligator answered on September 21, 2020 Popularity 9/10 Helpfulness 1/10

answer socket emit cheat sheet

related socket.io emit cheatsheet

socket emit cheat sheet

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io.on('connect', onConnect);function onConnect(socket){  // sending to the client  socket.emit('hello', 'can you hear me?', 1, 2, 'abc');  // sending to all clients except sender  socket.broadcast.emit('broadcast', 'hello friends!');  // sending to all clients in 'game' room except sender  socket.to('game').emit('nice game', "let's play a game");  // sending to all clients in 'game1' and/or in 'game2' room, except sender  socket.to('game1').to('game2').emit('nice game', "let's play a game (too)");  // sending to all clients in 'game' room, including sender  io.in('game').emit('big-announcement', 'the game will start soon');  // sending to all clients in namespace 'myNamespace', including sender  io.of('myNamespace').emit('bigger-announcement', 'the tournament will start soon');  // sending to a specific room in a specific namespace, including sender  io.of('myNamespace').to('room').emit('event', 'message');  // sending to individual socketid (private message)  io.to(socketId).emit('hey', 'I just met you');  // WARNING: `socket.to(socket.id).emit()` will NOT work, as it will send to everyone in the room  // named `socket.id` but the sender. Please use the classic `socket.emit()` instead.  // sending with acknowledgement  socket.emit('question', 'do you think so?', function (answer) {});  // sending without compression  socket.compress(false).emit('uncompressed', "that's rough");  // sending a message that might be dropped if the client is not ready to receive messages  socket.volatile.emit('maybe', 'do you really need it?');  // specifying whether the data to send has binary data  socket.binary(false).emit('what', 'I have no binaries!');  // sending to all clients on this node (when using multiple nodes)  io.local.emit('hi', 'my lovely babies');  // sending to all connected clients  io.emit('an event sent to all connected clients');};

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: socket.io

Tags: emit whatever

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Contributed on Sep 21 2020

Annoyed Alligator

0 Answers Avg Quality 2/10

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socket.io emit cheatsheet

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io.on("connection", (socket) => {

  // basic emit
  socket.emit(/* ... */);

  // to all clients in the current namespace except the sender
  socket.broadcast.emit(/* ... */);

  // to all clients in room1 except the sender
  socket.to("room1").emit(/* ... */);

  // to all clients in room1 and/or room2 except the sender
  socket.to(["room1", "room2"]).emit(/* ... */);

  // to all clients in room1
  io.in("room1").emit(/* ... */);

  // to all clients in room1 and/or room2 except those in room3
  io.to(["room1", "room2"]).except("room3").emit(/* ... */);

  // to all clients in namespace "myNamespace"
  io.of("myNamespace").emit(/* ... */);

  // to all clients in room1 in namespace "myNamespace"
  io.of("myNamespace").to("room1").emit(/* ... */);

  // to individual socketid (private message)
  io.to(socketId).emit(/* ... */);

  // to all clients on this node (when using multiple nodes)
  io.local.emit(/* ... */);

  // to all connected clients
  io.emit(/* ... */);

  // WARNING: `socket.to(socket.id).emit()` will NOT work, as it will send to everyone in the room
  // named `socket.id` but the sender. Please use the classic `socket.emit()` instead.

  // with acknowledgement
  socket.emit("question", (answer) => {
    // ...
  });

  // without compression
  socket.compress(false).emit(/* ... */);

  // a message that might be dropped if the low-level transport is not writable
  socket.volatile.emit(/* ... */);

  // with timeout
  socket.timeout(5000).emit("my-event", (err) => {
    if (err) {
      // the other side did not acknowledge the event in the given delay
    }
  });
});

Popularity 7/10 Helpfulness 2/10 Language whatever

Source: socket.io

Tags: whatever emit socket.io wh

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Contributed on May 08 2022

Mohammed Siddiqui

0 Answers Avg Quality 2/10

socket emit cheat sheet

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