FozzBzazz

// Console the numbers from 1 to 100
for ( var num = 1; num < 101; num ++ ) {

  // check if the number is multiples of 3 or 5
  var checkForThree = num % 3;
  var checkForFive = num % 5;

  // if the number is multiples of both 3 and 5, then print FozzBzazz
  if ( (checkForThree == 0) && (checkForFive == 0) )
    console.log( "FozzBzazz");

  // if the number is multiples of 3, then print Fozz
  else if (checkForThree == 0)
    console.log( "Fozz");

  // if the number is multiples of 5, then print Bzazz
  else if (checkForFive == 0)
    console.log( "Bzazz");

  // otherwise just print the number
  else
    console.log( num );
}