From: ts <decoux@...>
Date: 2002-04-01T01:19:17+09:00
Subject: Re: scoping question

>>>>> "Y" == Yohanes Santoso <ysantoso@jenny-gnome.dyndns.org> writes:

Y>   anArray.each do |x|
Y>     anArray[0].diff(x).each do |x|
[...]
Y>     end
Y>     puts "current_item => #{x}"
Y>   end

Y> What's going on? Shouldn't variables declared within the do..end
Y> and/or {..} block, are visible only from within the block?

 Yes,

 The problem is that |x| don't declare a variable, but it must be seens as
 a multi-assignement

 With this example

   1.times do
      x = 12
      1.times do
         x = 24
      end
   end

 The first assignement `x = 12' create a dynamic variable (because this is
 the first time that ruby see this variable)

 The second assignement `x = 24' just affect a new value to the previous
 declared variable `x'

 This is the same for your example.


Guy Decoux