Fizzbuzz done in F# & Coffeescript

fizzbuzz.coffee

firsthund = [1..100]

isfizz = (x) ->
  x % 3 == 0

isbuzz = (x) ->
  x % 5 == 0
  
handle = (x) ->
  if isfizz(x) and isbuzz(x) then 'fizzbuzz'
  else if isfizz x then 'fizz'
  else if isbuzz x then 'buzz'
  else x
  

fizzbuzz.fs

let firstHundred = [1..100]

let isbuzz x = 
    x % 5 = 0

let isfizz x = 
    x % 3 = 0

let handleNum x =
    match x with
    | (x) when isfizz x && isbuzz x -> "fizzbuzz"
    | (x) when isfizz x -> "fizz"
    | (x) when isbuzz x -> "buzz"    
    | _ -> x.ToString() 
       
    //if isfizz x then "fizz" else x.ToString()
    
List.map handleNum firstHundred