From: Austin Ziegler <austin@...>
Date: 2003-08-13T01:19:38+09:00
Subject: Re: Elegant solution for a loop-break problem

On Fri, 8 Aug 2003 00:00:15 +0900, KONTRA Gergely wrote:
>>> Is there something similar to python's for .. else ... structure? (Do
>>> something, ONLY when the loop is terminated normally (without break)

> for element in array
>   if element==value
>     puts "#{element} found in array!"
>     break
>   end
> else
>   puts "#{element} not found in array"
> end

This could be done with:

if array.find { |e| e == element }
  puts "#{element} found in array!"
else
  puts "#{element} not found in array!"
end

Alternatively:

if array.include?(element)
  puts "#{element} found in array!"
else
  puts "#{element} not found in array!"
end

It may not represent your full case, but I find that using the built-in 
iterators generally does more than a for loop in other languages and that 
there's some iterator that will do what is needed.

-austin
--
austin ziegler    * austin@halostatue.ca * Toronto, ON, Canada
software designer * pragmatic programmer * 2003.08.12
                                         * 12.14.03