From: Joe Van Dyk <joevandyk@...>
Date: 2005-12-22T08:19:22+09:00
Subject: Re: String > Integer Conversion Problem

On 12/21/05, James Edward Gray II <james@grayproductions.net> wrote:
> On Dec 21, 2005, at 4:39 PM, Matthew Feadler wrote:
>
> > Below, you can see that I'm checking command-line arguments to the
> > program for various conditions.
>
> See if this gives you some ideas:
>
> if ARGV.all? { |n| n =~ /\A\d+\Z/ }
>    puts "Usage..."
>    exit
> else
>    one, two = ARGV.map { |n| Integer(n) }
> end

Neat, didn't know about Enumerable#all? or about Integer().