compose = ( f, g ) -> ( x ) -> f g x # Example add2 = ( x ) -> x + 2 mul2 = ( x ) -> x * 2 mulFirst = compose add2, mul2 addFirst = compose mul2, add2 multiple = compose mul2, compose add2, mul2 console.log "add2 2 #=> #{ add2 2 }" console.log "mul2 2 #=> #{ mul2 2 }" console.log "mulFirst 2 #=> #{ mulFirst 2 }" console.log "addFirst 2 #=> #{ addFirst 2 }" console.log "multiple 2 #=> #{ multiple 2 }"