From: Hd Pwnz0r <human.dictionary@...>
Date: 2010-08-10T22:51:46+09:00
Subject: Re: Hel;p with Tip Calculator

Hassan Schroeder wrote:
> On Sun, Aug 8, 2010 at 8:59 AM, Andrei Beliankou <letteras@mail.ru> 
> wrote:
> 
>> Use
>>
>> '45 %'.sub(/%/, '').strip
>> '14 $'.sub(/[$]/, '').strip
> 
> More universally
> 
>   input_string.gsub(/\D/, '')
> 
> removes any non-[0-9] characters, including white space.

I get:

tax.rb:6:in `<main>': undefined method `gsub' for 0:Fixnum 
(NoMethodError)

When using that code.

As for Andrei, thanks, that's a good quick fix.
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