From: "Wolfgang Nádasi-Donner" <ed.odanow@...>
Date: 2007-10-15T02:12:00+09:00
Subject: Re: Parameter in a block is not local?

SpringFlowers AutumnMoon wrote:
> a = 1
> p a
> 
> 1.upto(10) {|a| p a}
> 
> p a
> 
> --------------
> 
> E:\>ruby test_iterator.rb
> 1
> 1
> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 9
> 10
> 10
> 
> a is changed!

!Remark only!

There will be a change for soon upcoming Ruby 1.9.1:

irb(main):001:0> a = 1
=> 1
irb(main):002:0> p a
1
=> nil
irb(main):003:0> 1.upto(10) {|a| p a}
1
2
3
4
5
6
7
8
9
10
=> 1
irb(main):004:0> p a
1
=> nil

Wolfgang Nádasi-Donner
-- 
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