From: Timothy Hunter <cyclists@...>
Date: 2006-02-13T07:03:26+09:00
Subject: Re: newbie question about blocks

Jeppe Jakobsen wrote:
> Hi, I want to square every element in my array using a block:
> 
> a = (1..1000).to_a
> a.each {|x| x**2}
> 
> But this does not seem to work, it just outputs my array completely
> unchanged :(
> 
> --
> "winners never quit, quitters never win"
> 
The collect method will produce a new array:

a.collect {|x| x*x}

or, if you want to modify the original array, use collect!