From: Robin Stocker <robin@...>
Date: 2006-10-12T05:23:16+09:00
Subject: Re: case ... when and arrays (or what was why_ showing us at railsconf europe)

J2M wrote:
> Hi,
> 
> I would like to test a string foo against an array bar in as case...
> when clause and would like to know the best way to do this. I am sure
> why_ did something neat with an * operator, but can't find any
> reference. I could do it long hand, but that just aint rubyish.
> 
> e.g.
> 
> foo = "that"
> bar = %(this that other)

You don't have an array in bar, just a string. You need to use %w:

   bar = %w(this that other)

> case foo
> 
> when (some clever way of test for foo in the array bar)

   when *bar

which corresponds to:

   when "this", "that", "other"

> .
> .
> else 
> 
> end
> 
> Anybody got a good suggestion?

Cheers,
   Robin