[taeric]

I fail to see how a simple switch statement doesn't read just as easily. I mean, sure I have to know the mod 15 trick, but... not exactly hard.

    function fizzBuzz(i) { 
      switch(i % 15) { 
        case 0: return "fizbuzz";
        case 5: 
        case 10: return "buzz";
        case 3:
        case 6:
        case 9:
        case 12: return "fizz";
        default: return i.toString();
      }
    }
    [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15].map(fizzBuzz)

[chrismorgan]

Even that is better in Rust (using the enum from the end):

    match i % 15 {
        0 => FizzBuzz,
        5 | 10 => Buzz,
        3 | 6 | 9 | 12 => Fizz,
        _ => Number(i),
    }

[taeric]

I actually agree it is better. But... my point was that the switch statement was already pretty readable. If there are gains, they feel pretty small in these examples.

And to be clear, I like pattern matching. A lot. I just don't feel this really shows it off that well.

[icedog]

What do you expect; it's FizzBuzz.

[mattmanser]

Only because you're expecting the cases to fall through, you're being blinded by your own expectation.

Your code is considered bad practice in many languages.