fizzbuzz.js

console.log(
  Array.apply(null, {length: 100}).map(function(val, index) {
    return (++index%3?'':'Fizz')+(index%5?'':'Buzz')||index;
  }).join('\n')
);

console.log(
  Array.apply(null, {length: 100}).map(function(val, index) {
    index++;
    if (index % 15 == 0){return "FizzBuzz";}
    if (index % 3 == 0){return "Fizz";}
    if (index % 5 == 0){return "Buzz";}
    return index;
  }).join('\n')
);