[Templates] Lists and rand like http://faq.perl.org/perlfaq4.html#How_do_I_select_a_ra

[Gavin Henry]

quote who="Gavin Henry">
> Dear all,
>
> I am trying to get a random image/"Tip of the Day" from a list of
> images/tips for one of our sites. I was playing naively with:
>
> [% USE Math %]
>
> [% tips = [ 'test'
>
>               'test1'
>
>               'test2'
>
>               'test3' ] %]
>
> [% Math.rand(tips) %]
>
> But in my eyes tips is an array ref, so it will be using the memory
> address of that array and giving me a random fractional number greater
> than or equal to 0 and less than the value of this address.
>
> What's the proper way ;-)

I chose Philips one in the end. Thanks all:

[% USE Math %]
[% tips = ['test','test1','test2','test3'] %]
[% tips.${Math.rand(tips.size)} %]

Remind me, do the ${} force scalar context?

Thanks.

>
> Cheers,
>
> Gavin.
>
> --
> Walking the road to enlightenment... I found a penguin and a camel on the
> way..... Fancy a yourname@perl.me.uk? Just ask!!!
> http://perlmonks.org/?node_id=386673
>
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