Fizzbuzz

fizzbuzz.js

const generateListOfNumbers = (toMax = 50) => [...Array(toMax + 1).keys()].slice(1)

const isDivisibleBy = (number) => {

    return {

        "3" : "fizz",

        "5" : "buzz",

        "15": "fizzbuzz" 

    }[number]

}

const testDivisionBy = (x, y) => x % y === 0

const testCondition = (x) => {

    if (testDivisionBy(x, 15)) return isDivisibleBy("15")

    if (testDivisionBy(x, 5)) return isDivisibleBy("5")

    if (testDivisionBy(x, 3)) return isDivisibleBy("3")

    return x

}

const listOfNumbers = generateListOfNumbers(100)

const solution = listOfNumbers.map(testCondition).join(',')

console.log(solution)