From: 12 34 <rubyforum@...>
Date: 2007-06-21T09:17:24+09:00
Subject: Re: if == any item in an array

Tim Pease wrote:
> PhotoEndings = %w(JPG MRW JPE)
> MovieEndings = %w(AVI)
> 
> case ext.upcase
> when *PhotoEndings
>   puts "I'm a photo!"
> when *MovieEndings
>   puts "I'm a movie!"
> else
>   puts "I'm unknown '#{ext}'"
> end
> 
> 
> When you were declaring your endings with the %w notation, you had put
> commas between the file extensions. Therefore, your arrays only
> contained one element.
> 
> Give this code a shot. You almost had it -- the syntax you were
> looking for was the leading splat "*" in front of the PhotoEndings and
> MovieEndings in the branches of the case statement.
> 
> Blessings,
> TwP
Thank you and all the others that answered. The array.include was what I 
was thinking too. But removing a couple of commas and adding a couple of 
astericks (splats) is nice. Ruby is great.

I don't understand the meaning of the *. I imagine it comes from the 
wildcard usage. What do I look up in my books to understand this.

Again thanks to the great community. All the answers help me learn.

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