From: Timothy Hunter <cyclists@...>
Date: 2005-12-22T09:52:48+09:00
Subject: Re: String > Integer Conversion Problem

Jacob Fugal wrote:
> begin
>   one, two = ARGV.map{ |n| Integer(n) }
> rescue ArgumentError
>   puts Usage
>   exit
> end

When the arguments to Integer are strings from the command line, yes. In 
the general case Integer() can raise TypeError as well as ArgumentError, 
for arguments like Integer([1,2])