quick coffee version of node example in Node Up and Running

chat.coffee

net   = require "net"
sugar = require "sugar"

chatServer = net.createServer()
clientList = []

chatServer.on "connection", (client) ->
  client.name = "#{client.remoteAddress}:#{client.remotePort}"
  client.write "Hi! #{client.name}!\n"
  console.log "#{client.name} joined"

  clientList.push client
  console.log clientNames()

  client.on "data", (data) ->
    console.log data
    broadcast data, client

  client.on "end", ->
    console.log "#{client.name} quit"
    clientList.remove (c) -> c.name == client.name
    console.log clientNames()

  client.on "error", (e) ->
    console.log "error: #{e}"

broadcast = (message, client) ->
  msg = "#{client.name} says: #{message}"
  for c in clientList
    c.write msg if c.writable and c isnt client

clientNames = -> clientList.map "name"

chatServer.listen 9000