From: Rimantas Liubertas <rimantas@...>
Date: 2006-11-18T02:27:00+09:00
Subject: Re: ruby equivalent PHP function is_numeric?

> > After reading completely my Ruby book, I cannot find a function
> > equivalent to the PHP  is_numeric? to test a String
> >
> > myString.is_numeric?   (check only digits and dot character)   =>
> > return true or false
<...>

> def is_numeric?(s)
>   return (s.to_s =~ /^\d+(\.\d+|\d*)$/)?true:false
> end
<...>

>> is_numeric?("1000_000")
=> false

In ruby it is not only about dot and digits, but also underscores.

Regards,
Rimantas
--
http://rimantas.com/