From: Tyler Eaves <tylere@...>
Date: 2005-05-26T13:20:18+09:00
Subject: Re: Zerofy

On Wed, 25 May 2005 14:24:17 -0700, aartist wrote:

> How I can zerofy the day and month. I like to add 0 in the beginning.
> Now an object cannot have 0 at the beginning unless it is a string
> object in this context.

I think the real problem here is that maybe you aren't quite comfortable
with the typing system. Fixnums are designed for mathematical
manipulation. Strings (in this context) are generally used for display. So
basically you want to hold off on converting to a string for as long as
possible. Generally, there's no need to do an explicit conversion. You'll
generally just use printf or something when you need to display it, but
you'll keep the integer as the actual object. 

irb(main):001:0> a = 3
=> 3
irb(main):002:0> printf("%02d\n",a)
03
=> nil