[Tfug] random squares

[christopher floess]

I always thought that java and javaScript were different


On 10/22/07, Robert Hunter <hunter at tfug.org> wrote:
> On 10/21/07, Robert Hunter <hunter at tfug.org> wrote:
> > On 10/21/07, christopher floess <skeptikos at gmail.com> wrote:
> >> I know I could use math.random(), but
> >> would anyone recommend a better way to do this?
> >
> > This is especially nice if a "shuffle" function is
> > already provided for you.
>
> A Knuth shuffle in less than ten lines of JavaScript.
>
> <snip language="JavaScript">
> // randomize the order of an array
> function shuffleArray(ary) {
>     if (ary.length == 1) {
>         return ary;
>     } else {
>         var n = Math.floor(Math.random() * ary.length);
>         var x = ary.splice(n, 1);
>         var y = shuffleArray(ary);
>         y.push(x[0]);
>         return y;
>     }
> }
> </snip>
>
> PS. It's probably a one-liner in Perl ;-)
>
> --
> RH
>
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