From: James Edward Gray II <james@...>
Date: 2006-02-22T00:16:00+09:00
Subject: Re: Blocks / Closures

On Feb 21, 2006, at 9:08 AM, Picklegnome wrote:

> I've just been looking into Ruby in the last few days, and I must  
> say it
> does look promising. However, many of the tutorials and other  
> resources I've
> been looking at use blocks. Having done some research, I'm  
> beginning to
> understand what they are and how they are used. However, I've only  
> come
> across examples that use them for iteration and keeping a static  
> variable
> hidden. Is there something I'm missing? Can blocks be used for non- 
> iterative
> functions?

Sure.  File::open uses a block for resource clean-up (auto file  
closing).  The standard PStore library uses them for transactions.

Hope that helps.

James Edward Gray II