From: John Honovich <jhonovich@...>
Date: 2008-02-17T03:32:44+09:00
Subject: where to check for nils or empty?

I am processing arrays of URLs.  I call a series of methods to delete or
modify those urls. I have a risk that those methods will return an empty
or null array.

I am trying to figure out where and how to best check if the array is
null or empty.


Right now, I am doing it like this:

def process array
  array = firstReview array
  return if array.nil? || array.empty?
  array = secondReview array
  return if array.nil? || array.empty?
  # repeat again and again
end

def firstReview array
  array.reject! {|a| @MasterList.include? (a)}
end


My approach works currently but feels ugly and repetitive.

Any advice for improving this?

Thanks,

John
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