From: Aryk Grosz <tennisbum2002@...>
Date: 2008-04-21T08:28:21+09:00
Subject: Re: shortcut for x = unless x.is_a?(Array)

Hey guys,

I just read through this whole thread. I've really thought this through.

What I was really trying to do all along was this.

x = [x] unless x.is_a?(Array). I know this sounds redundant, buts that 
what I want and thats all I want.

In the case of most types, the to_a and Array() can get you by, but when 
you don't know what type it is (especially when it could be a hash), I 
defined this function to flat out just do what I want it to do.

class Array
def self.wrap(value)
value.is_a?(Array) ? value : [value]
end
end

Simple, to the point, and no corner cases...is my solution.

So:

g = {:x=>1, :y=>2}
Array.wrap(g)[0].is_a?(Hash) ==> true

Done.
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