From: Daniel Finnie <dan@...>
Date: 2008-03-21T08:14:51+09:00
Subject: Re: Dealing properly with scope; came from:combine array(string) to string?

You can usually use inject or collect to eliminate the a = [] line.
For example:

b = %w[a b c d e]
a = b.collect {|i| i * 2 }

Also, I would caution against using the variable i as anything but a
loop counter.

Regards,
Dan

On Thu, Mar 20, 2008 at 6:56 PM, Todd Benson <caduceass@gmail.com> wrote:
> In much of my code, I've built an Array object before a block for
>  scope reasons.  Is this common practice?
>
>  b = %w|a b c d e|
>  a = [] #instantiation
>  b.each {|i| a << i*2}
>  puts a
>
>  Todd
>
>