From: Rick DeNatale <rick.denatale@...>
Date: 2009-12-22T22:39:10+09:00
Subject: Re: newbie: if is not null else...

On Tue, Dec 22, 2009 at 8:32 AM, Alfonso Caponi
<alfonso.caponi@gmail.com> wrote:
> Hi forum,
>
> how can I replace this PHP syntax with Ruby?
>
> $x = (isset($x) and !empty($x)) ? $x : '-';
>
> I would like assign a default value if $x is Null.

The approximate Ruby idiom would be

$x ||= '-'

The only caveat is that this would (re)assign the value if $x were
either nil or false. This is usually not an issue, but if so then you
could use

$x = '-' if $x.nil?



-- 
Rick DeNatale

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