From: Mat Brown <mat@...>
Date: 2010-02-28T06:32:47+09:00
Subject: Re: scope question

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Method definitions are not closures, so they don't have access to external
local scope. Use $vara to declare a global, if you really think that's a
good idea.

On Feb 27, 2010 4:27 PM, "Nick Brown" <nick@nick-brown.com> wrote:

Consider the following Sinatra app:

require 'sinatra'
vara = "foo"
VARB = "bar"
helpers do
 def geta
   vara
 end
 def getb
   VARB
 end
end
get '/a' do geta end
get '/b' do getb end

When I run that and browse to /b, it displays "bar". When I browse to
/a, however, it produces the error: "undefined local variable or method
`vara'".

Why do these two variables differ in scope?

How can I declare a variable that has global scope but is not a
constant?

Thanks in advance...
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