Fizzbuzz but can i do FP? no u

fzbz.js

function iota (n) { // Pretty genius implementation
    return [...Array(n).keys()]
}
function fizzbuzz (n) {
    return iota(30).map( x => 
        (x % 15 === 0 ? "fizzbuzz" : x % 3 == 0 ? "fizz" : x % 5 == 0 ? "buzz" : x.toString())
    )
}