From: Steve Tuckner <stevetuckner@...>
Date: 2004-09-29T12:37:21+09:00
Subject: Re: DRY ruby idiom

David A. Black wrote:

>  $ ruby -e 'a = b if b'
>  -e:1: undefined local variable or method `b' for main:Object
>  (NameError)
>
>  
>
Perhaps I should clarify how I was using this. Lets say I have a 
variable with a default value and I want to overwrite it with something 
else as long as it is non-nil.

a = "default"
a = foo.value if foo.value

I just wanted to see if there was a simple way to avoid the double 
foo.value that I was missing. Thanks for all your responses.

Steve Tuckner