From: Avi Bryant <avi@...4.com>
Date: 2001-10-11T09:08:32+09:00
Subject: [ruby-talk:22412] Re: list comprehensions alike Python ???

On Thu, 11 Oct 2001, Paul Prescod wrote:

> Out of curiousity, what would the Ruby for this look like:
> 
> >>> arr = [x*x for x in range(0,10) if x%2==0]
> >>> arr
> [0, 4, 16, 36, 64]
> 
> A combination of filter and map?

sure:
arr = (0..10).collect{|x| x*x}.select{|x| x.even?}