From: Robert Klemme <shortcutter@...>
Date: 2012-09-24T21:00:05+09:00
Subject: Re: sandwhich principle (ruby koans)

On Mon, Sep 24, 2012 at 1:13 PM, Roelof Wobben <rwobben@hotmail.com> wrote:

> If I understand it right the principle is the same as the DRY method

DRY is a meta principle: the reduction of redundancy (or: repetition)
is the driving force behind many patterns and refactoring approaches.
Identifying common behavior and finding proper abstractions for it is
one of the core tasks in software engineering - if not the single most
important task we do.  It gives you

 - reduced code size
 - less errors during maintenance (if the same code appears n times,
you will have to fix a bug or implement an extension of the
functionality in n locations and can easily forget one).
 - sometimes increased complexity

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/