From: matz@... (Yukihiro Matsumoto)
Date: 2000-10-18T17:33:55+09:00
Subject: [ruby-talk:5661] Re: local variables (nested, in-block, parameters, etc.)

Hi,

In message "[ruby-talk:5655] Re: local variables (nested, in-block, parameters, etc.)"
    on 00/10/18, Mathieu Bouchard <matju@cam.org> writes:

|Yes, I'm lazy.
|
|And rewriting it to:
|
|x = [1,2,3].find {|i| condition i }
|
|is easy, and allows you to be lazier.

Well, it's definitely concise and better.
But lazy person like me prefer no work at all.

Anyway, I understand your opinion that block parameters should be
local.  By the way, what do you think about the for-loop variable,
which is syntactically block parameter without blocks.

For example, 

  index = 345
  for index in 1..5
    print "#{index}\n"
  end
  print index   # Prints 5

is almost identical to

  index = 345
  (1..5).each do |index|
    print "#{index}\n"
  end
  print index   # Prints 5

except the former does NOT introduce any block scope.

							matz.