From: DDENNISON@...
Date: 2007-04-09T22:28:26+09:00
Subject: Re: code blocks and methods

I like to think of code blocks as a visitor pattern or a callback function.
You are essentially passing in a chunk of code to a method to be executed
for each logical element of data.


                                                                           
             James Edward Gray                                             
             II                                                            
             <james@grayproduc                                          To 
             tions.net>                ruby-talk@ruby-lang.org (ruby-talk  
                                       ML)                                 
             04/09/2007 07:46                                           cc 
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                                       Re: code blocks and methods         
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             ruby-talk@ruby-la                                             
                  ng.org                                                   
                                                                           
                                                                           
                                                                           




On Apr 8, 2007, at 12:29 PM, botp wrote:

> On 4/9/07, andy <eps@mailinator.com> wrote:
>> I am familiar with c# and java, one thing I don't understand is the
>> difference between code blocks and methods, can anyone offer a better
>> explanation than the one on the site above ?
>
> to quote carlson et al, "a Ruby code block is a method that has no
> name." see http://www.devarticles.com/c/a/Ruby-on-Rails/Code-Blocks-
> and-Iteration/
> or the ruby cookbook.

I wrote about my take on code blocks for my blog a while back:

http://blog.grayproductions.net/articles/2006/01/05/code-as-a-data-type

James Edward Gray II



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