From: Peter Zotov <whitequark@...>
Date: 2011-06-03T17:32:08+09:00
Subject: Re: Behaviour of different Proc types

 On Fri, 3 Jun 2011 13:22:18 +0900, Josh Cheek wrote:
> I realized that I just can't ever remember the different proc types
> behaviours. So I wrote a script to check them.
> https://gist.github.com/1005840
>
> My conclusion:
>   proc: Avoid this, since its behaviour differs across commonly used
> implementations.
>   lambda: Use this if you want it to behave like a method.
>   Proc.new: Use this if you want it to behave like a block.
>
> Is that reasonable? Any thoughts or insights? Do you have a different 
> set of
> rules or a more elegant conclusion?

 I should note that proc behavior differs not across implementations, 
 but across
 different Ruby [spec] versions, which are more of different languages 
 than just
 versions.

-- 
   WBR, Peter Zotov.