From: 7stud -- <bbxx789_05ss@...>
Date: 2011-05-28T06:04:21+09:00
Subject: Re: Variable scopes with code blocks.

Aaron Gray wrote in post #1001620:
> Hello!
>
> Novice here. I'm reading Beginning Ruby and Beginning Rails by Apres and
> building both applications they walk you through. Additionally, I'm
> taking courses at lynda dot com and attempting to build a simple
> application myself.
>
> That said, I'm aware of the limits you have with local variable being
> incapable of accessing variables defined inside of a code block, but is
> there any exception to this rule?
>
> Example:
> _____________
>
> 1.times do
>   File.open("text.txt").each {|a| puts a}
> end
>
> puts a
> # This where I get my error.
> _____________
>
> Is there anything I can do to 'puts a' that will allow it to return the
> content it was passed inside of the code block?
>


arr = []

IO.open('text.txt') do |line|
  arr << line
end

p arr


> Ultimately, I'd like to store the 'text.txt' as an array so I can call
> .uniq! on it... But we don't need to get into that in this thread.
>

arr = File('text.txt').readlines

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