From: David Vallner <david@...>
Date: 2006-08-23T08:55:23+09:00
Subject: Re: How can't i modify the to_s method in Integer Class?

Grab Mail wrote:
> class Integer
> 
>   def to_s
>     '9'
>   end
> 
> end
> 
> puts 5.to_s
> 
> I'm still getting 5.

There's also the gotcha of redefining core methods - other core methods 
just might call directly their implementations in C without going 
through the interpreter.

Try not to rely on core method redefining unless you know you'll always 
be calling the redefined methods directly.

David Vallner