From: Charles Calvert <cbciv@...>
Date: 2010-10-12T12:44:10+09:00
Subject: Re: more idiomatic way to avoid errors when calling method on variable that may be nil?

On Mon, 11 Oct 2010 22:01:43 -0500, "ara.t.howard"
<ara.t.howard@gmail.com> wrote in
<0b78a0a6-c2f2-4321-92bc-d7e6acc5c869@d25g2000yqc.googlegroups.com>:

>
>var = hash[key].downcase if hash[key]

This is a variant of:

var = hash[key].downcase unless hash[key].nil?

which I indicated in my original post won't work, as I want an
explicit assignment of nil to var in the event that hash[key] returns
nil.  See David Black's response to my post.  I'm not assuming that
this is the first occurrence of var, so it may already have a value
from a previous assignment.
-- 
Charles Calvert
Moderator - alt.computer.consultants.moderated
Submission Address: accm@celticwolf.net
Contact Address: accm_mod@celticwolf.net