From: Florent Guiliani <fguiliani@...>
Date: 2006-10-19T20:53:41+09:00
Subject: Re: My second day of learning Ruby (and my seconds feels)

Florent Guiliani a �crit :
> First impressions of blocks:
> ----------------------------
> 
> irb(main):293:0* a=[ "aaa", "bbbb", "bbbbbb", "ccc", "dddddd" ]
> => ["aaa", "bbbb", "bbbbbb", "ccc", "dddddd"]
> irb(main):294:0> a.each { |a| puts a }
> aaa
> bbbb
> bbbbbb
> ccc
> dddddd
> => ["aaa", "bbbb", "bbbbbb", "ccc", "dddddd"]
> irb(main):295:0> a
> => "dddddd"
> 
> a is changed. scope of the block is not duplicate/separate?


I've got my anwser at Chapter 7, Part I of pickaxe Ruby book:

Variable Scope, Loops, and Blocks

(..cut..)

However, if at the time the block executes a local variable already 
exists with the same
name as that of a variable in the block, the existing local variable 
will be used in the
block. Its value will therefore be available after the block finishes.

Florent,