From: Jason  Vogel <jasonvogel@...>
Date: 2006-12-10T15:35:04+09:00
Subject: Re: Difference between nil? vs. (variable != nil)...

I appreciate the advice.  I've just being trying to be careful to not
be too C#/Java-ish.  I've never done any Perl.

Thanks,
Jason

On Dec 7, 12:55 am, David Vallner <d...@vallner.net> wrote:
> James Moore wrote:
> > Is there a particular reason you're comparing to nil?  Normally I'd just
> > write something like
>
> >   (@product_coverages && @product_coverages.length > 0)This is Perlish, and there's people (myself included) that don't like
> the style - it hides the nil-check, which is useful to be more visible
> if you're doing it as a special case filter, like snippet B in the
> original post does. I usually prefer getting rid of special cases like
> missing arguments etc. with a series of checks and returns / exceptions
> in the worse cases at a the beginning of a method to keep precondition
> verification in one place instead of scattered through the code with
> failure consequences interspersed with regular processing.
> 
> David Vallner
> 
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