From: Tom Reilly <w3gat@...>
Date: 2013-03-30T09:25:53+09:00
Subject: Re: Nil or enter with no input

Phil H. wrote:
> 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
>
Using enter even with no other character will return a \r\n or \n 
depending upon your operating system

Tom Reilly