[Pharylon]

No loops, no sequence, one horrific line. :)

    Console.Write(String.Join("\r\n",  Enumerable.Range(1, 100).Select(x => x % 15 == 0 ? "FizzBuzz" : x % 5 == 0 ? "Buzz" : x % 3 == 0 ? "Fizz" : x.ToString())));

[spc476]

There's a hidden loop in Enumerable.Range(), and quite possibly another one in String.Join(). Just because you avoided an explicit loop doesn't mean there isn't one (for example, an "if" statements has an implicit GOTO).

[davidy123]

Ternaries aren't super readable.

  Array.from(Array(100).keys()).map(k => k + 1).map(i => !(i % 15) && 'fizbizz' || !(i % 5) && 'buzz' || !(i % 3) && 'fizz' || i)

[ingenter]

No need for ternaries!

    Array.from(Array(100).keys()).map(k => k + 1).map(i => [i,'Fizz','Buzz','FizzBuzz'][!(i%3)+2*!(i%5)])