From: khaines@...
Date: 2006-08-19T06:24:20+09:00
Subject: Re: Class variables in Ruby

On Sat, 19 Aug 2006, Daniel Waite wrote:

>> @@cacheDescr = {} unless @@cacheDescr
>
> Or, to be more idiomatic:
>
> @@cache_descr ||= {}

Which I usually prefer, but the variant that uses unless reads more like a 
sentence if a person isn't sure what's happening there.

I wish I could use a simple structure like that for constants.

Foo = 7 unless const_defined? :Foo

is wordier than I like.


Kirk Haines