From: darren kirby <bulliver@...>
Date: 2008-04-01T13:15:55+09:00
Subject: Re: assignment if key_exist? in Hash

quoth the ara.t.howard:
> On Mar 31, 2008, at 9:30 PM, Peņa, Botp wrote:
> > foo = some_hash["some_key"] || foo
>
> that replaces even if the key is set to 'false', 'nil', or if the hash
> does not have the key... 

I don't understand...If the hash key doesn't exist then foo retains its 
original value. That is the behaviour I require:

> foo = "Some String"
> h = {}
> foo = h["none_such"] || foo
=> "Some String"
> h = {"some_key"=>"some value"}
> foo = h["some_key"] || foo
=> "some value"

-d
-- 
darren kirby :: Part of the problem since 1976 :: http://badcomputer.org
"...the number of UNIX installations has grown to 10, with more expected..."
- Dennis Ritchie and Ken Thompson, June 1972