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Elegant FizzBuzz Example

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When you use the `+` operator on an Array, it converts it to a string.` [].toString()` is the same as `[].join(',')`, which gives an empty string in case the array value is `undefined` or `null`. This also works in Javascript `([undefined] + "b" === "b")`.

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  1. var i;
  2.  
  3. for (i = 1; i <= 100; i++) {
  4.   console.log([!(i % 3) ? 'fizz' : void 0] + [!(i % 5) ? 'buzz' : void 0] || i);
  5. }

URL: http://ricardo.cc/2011/06/02/10-CoffeeScript-One-Liners-to-Impress-Your-Friends.html

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