irc - async example

gistfile1.js

  // Get a list of rooms...
  socket.on('list rooms', function(data){
    client.smembers('rooms', function(err, rooms){
      var remaining = rooms.length,
        array = []

      async.forEach(rooms, function (room, done) {
         client.hgetall('room_' + room, function (e, result) {
            array.push(result);
            done();
         });
      }, function () {
         socket.emit('list rooms', JSON.stringify(array));
      );

    });
  });