From: Lars <larsch@...>
Date: 2008-03-07T19:09:55+09:00
Subject: Re: Iterating over a nil value from CSV element

On Mar 6, 6:24 pm, Max Russell <thedoss...@gmail.com> wrote:
> when I'm parsing a csv file, and don't want to use those elements that
> return a nil value, what is the easiest way to do so? I've tried:
>
>     if record == nil
>       next
>     else

If tend to like boolean expressions rather than comparison with
'nil' (or false):

   next if record.nil?

or

   next unless record

The latter will skip when next is either 'nil' or 'false'.

If you have multiple fields and want to skip if they all are nil/
false:

   next unless first or second or third

If you want to skip if any of them are nil/false:

   next unless first and second and third

Lars