fizzbuzz.js

const fizz = n => n % 3 === 0 ? 'Fizz' : '';
const buzz = n => n % 5 === 0 ? 'Buzz' : '';
const test = n => ([fizz, buzz].map(f => f(n)).filter(Boolean).join(' ') || n;
for (let i = 0; i < 31; i++) console.log(`"${test(i+1)}"`)

fizzbuzz_part.js

// const p = str => o => n => n % o ? null : str
// const test = n => [p('Fizz')(3), p('Buzz')(5)].map(f => f(n)).filter(Boolean).join(' ') || n
const p = (str, o) => n => n % o ? null : str
const test = n => [p('Fizz', 3), p('Buzz', 5)].map(f => f(n)).filter(Boolan).join(' ') || n
for (var i = 0; i < 100; i += 1) console.log(`"${test(i + 1)}"`)