In response to Tom Scott's video at https://www.youtube.com/watch?v=QPZ0pIK_wsc.

fizzBuzz.js

// define
const fizzBuzz = (conf, limit) => {
    var num = 0;
    const check = () => {
        for (divisor in conf)
            if (num % divisor == 0) return conf[divisor];
        return num;
    };
    while (num++ < limit) console.log(check());
}; 

// call
fizzBuzz({
    3: "fizz",
    5: "buzz"
}, 100);