From: Paul Brannan <pbrannan@...>
Date: 2003-08-21T01:33:00+09:00
Subject: Re: for/in loop

On Thu, Aug 21, 2003 at 01:27:44AM +0900, Hal E. Fulton wrote:
> I've heard it suggested that it is largely
> pointless, and we should probably just use
> 'each' et al. instead.

It's definitely not pointless:

  for i in [1, 2, 3]
    x = i
  end
  p x #=> 3
  
  [1, 2, 3].each do
    y = i
  end
  p y #=> test.rb:9: undefined local variable or method `y' for #<Object:0x40289ce0> (NameError)

Paul