From: "David A. Black" <dblack@...>
Date: 2009-06-28T23:47:09+09:00
Subject: Re: Attr Methods and object setters

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Hi --

On Sun, 28 Jun 2009, Rick DeNatale wrote:

> On Sun, Jun 28, 2009 at 10:18 AM, David A. Black<dblack@rubypal.com> wrote:
>> At the risk of someone saying that I've made it too cryptic, it could
>> be one line shorter:
>>
>> �Nothing = Object.new
>> �def name(value = Nothing)
>> � �@name = value unless value == Nothing
>> �end
>>
>
> Actually the second line IS necessary
>
> Nothing = Object.new
> def name(value = Nothing)
>   @name = value unless value == Nothing
> end
>
> name 42 # => 42
> name # => nil

Whoops -- right you are. Rewind.

(At least you didn't say it was cryptic :-)


David

-- 
David A. Black / Ruby Power and Light, LLC
Ruby/Rails consulting & training: http://www.rubypal.com
Now available: The Well-Grounded Rubyist (http://manning.com/black2)
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