alexpsi

const chunks = (arr, chunkSize) => {
  let results = [];
  while (arr.length) results.push(arr.splice(0, chunkSize));
  return results;
};

module.exports = (xs, f, concurrency) => {
  if (xs.length == 0) return Promise.resolve();
  return Promise.all(chunks(xs, concurrency).reduce(
    (acc, chunk) => acc.then(() => Promise.all(chunk.map(f))),

alexpsi

Keybase proof

I hereby claim:

• I am alexpsi on github.
• I am alexpsi (https://keybase.io/alexpsi) on keybase.
• I have a public key whose fingerprint is A848 8F9A 1E2B 21B8 8A3A 0BBF 306D 71A6 4ACD 37EA

To claim this, I am signing this object:

alexpsi

// 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