D言語で再帰使ってFizzBuzz

fizzbuzz.d

import std.stdio,
       std.conv,
       std.algorithm;
       
string[] fizzbuzz(int max, int i = 0, string[] base = null){
  return max == 0 ? base : fizzbuzz(max - 1, ++i, base ~ {
      return !(i % 15)    ? "FizzBuzz" :
               !(i % 3)   ? "Fizz"     :
                 !(i % 5) ? "Buzz"     : i.to!string;
      }());
}

void main(){
  foreach(e; 30.fizzbuzz)
    e.writeln;
}