thejh

find = (obj, id) ->
  if id isnt undefined
    thing for thing in obj when thing.id is id
  else
    obj

thejh

var find = function(obj, id) {
    if(id !== undefined) {
       var results;
       if(obj.id === id) {
           results.push(obj);
       }
       return results;
    }
    return obj;
}

thejh

# How do I add the second params to a method args after the first one being a function?

timeout = setTimeout(function() {
  sys.puts('Timeout')
  tweetEmitter.removeListener(listener)
}, 10000)

timeout = setTimeout ->
 sys.puts 'Timeout'
 tweetEmitter.removeListener listener

thejh

class Lion extends Animal

  eat: (food, cb)->
    cb()