FizzBuzz implementations with no if/else statements.

fizzbuzz.js

// Do 'fizzbuzz' for numbers from 1 to n, no if/else
var fizzbuzz = function (n) {
   var i = 0;
   while (i++ < n)
      console.log(i, !(i%15)&&'fizzbuzz'||!(i%5)&&'buzz'||!(i%3)&&'fizz'||i);        
};

// Do fizzbuzz recursively (no loop structures)
var fizzbuzz_r = function (n) {
   if (!n) return;
   fizzbuzz(n-1); 
   console.log(n, !(n%15)&&'fizzbuzz'||!(n%5)&&'buzz'||!(n%3)&&'fizz'||n);  
}

// Do fizzbuzz with fewer tests (no need to check for 15)
var fizzbuzz_s = function (n) {
   var i = 0;
   while (i++ < n) 
      console.log(i, (!(i%3)?'fizz':'')+(!(i%5)?'buzz':'')||i);
}

// uncomment to test...
// fizzbuzz(20);
// fizzbuzz_r(20);
// fizzbuzz_s(20);