From: Andrew Wagner <wagner.andrew@...>
Date: 2010-10-13T22:46:27+09:00
Subject: Re: Options in a class

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Try this:
module Abc
  def self.test(arg =3D> :red)
    puts arg
  end
end

puts Abc.test # =3D> red
puts Abc.test(:blue) #=3D> blue

On Wed, Oct 13, 2010 at 9:41 AM, Paul Bergstrom <pal@palbergstrom.com>wrote=
:

> I have some problems understanding the basics of classes and modules in
> Ruby =E2=80=93 and arg and options. How do you create a e g class that ca=
n take
> some options, but leave them out if not needed? This is what I'm
> familiar with now, sending along an arg to the method in a module.
>
> module Abc
> def self.test(arg)
> puts arg
> end
> end
>
>
> In this occasion I have to pass along a an arg, or nil, or there will an
> error. But how do I design my module so I can pass options, or leave
> them out if wanted? Like:
>
> Abc.test(:color =3D> 'red') or Abc.test()
>
> --
> Posted via http://www.ruby-forum.com/.
>

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