From: "Phil H." <lists@...>
Date: 2013-03-30T00:55:08+09:00
Subject: Nil or enter with no input

How can I tell if someone has enter nothing in a gets prompt, they only
press enter. I though maybe it was nil, but that doesn't seem to work. I
though this was going to work nicely, but doesn't.

# Building and sorting an array.

array = []
word = 'foo'

while word != nil
  puts 'Enter a word'
  word = gets
  array.push word
end

puts array.sort

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