CoffeeScript fun

coffee-script.coffee

Function::some = (n) -> that = @; (a...) -> that.apply this, a.slice 0, n

# loger
log = (a...) -> console.log a.join " -> "

# math
mult = (a) -> a * a

# possition
odd = (k) -> k % 2
even = (k) -> !odd k

#  agr's
nsarg = (n) -> () -> arguments[n]
last = (a...) -> a.pop()

#  comparetion
less = (than) -> (x) -> than > x
greater = (than) -> (x) -> than < x

[0..100]
  .map( nsarg 1 )
  .map( mult )
  .filter( even )
  .filter( less 100 )
  .filter( greater 10 )
  .forEach( log.some 2 )