JavaScript has powerful array functionality.

Sometimes just a few lines of JavaScript can do quite a lot. Many countries these days have some sort of lottery or lotto or pools (or whatever they call it) that requires you to select so many numbers out of a given total and if your numbers (or some of them) are drawn then you win a prize. To save you the trouble of picking your numbers you can get just as few lines of JavaScript to do it for you.

Lotto Picker