nction that is the composition of a list of functions, each
# consuming the return value of the function that follows.
_.compose = ->
  funcs = arguments
  ->
    args = arguments
    for i in [funcs.length - 1..0] by -1
      args = [funcs[i].apply(this, args)]
    args[0]


# Object Functions
# ----------------

# Retrieve the names of an object's properties.
_.keys = nativeKeys or (obj) ->
  return _.range 0, obj.length if _.isArray(obj)
  key for key, val of obj


# Retrieve the values of an object's pr