From: Ken Bloom <kbloom@...>
Date: 2008-09-21T12:32:01+09:00
Subject: Re: for or each?

Phlip <phlip2005@gmail.com> wrote:
> Joe Wölfel wrote:
> 
>> It's interesting that array access using 'each' seems to be much  
>> faster on my machine.
> 
> Does 'for' reevaluate its range after each tick? That would give
> 'for' a single technical advantage over .each, in the very rare
> chance you need that.

No:

class Numeric
   def foo
      puts "foo"
      self
   end
end
for i in 1..10.foo
   puts i
end

prints:

foo
1
2
3
4
5
6
7
8
9
10
=> 1..10


-- 
Chanoch (Ken) Bloom. PhD candidate. Linguistic Cognition Laboratory.
Department of Computer Science. Illinois Institute of Technology.
http://www.iit.edu/~kbloom1/