From: "Brian Schröder" <ruby.brian@...>
Date: 2005-09-13T22:22:24+09:00
Subject: Re: Quick question.

On 13/09/05, Robert Klemme <bob.news@gmx.net> wrote:
> Kevin Brown <blargity@gmail.com> wrote:
> > Alright, I feel like an absolute idiot, but the question is simple,
> > and 30 minutes of looking hasn't yet yeilded the answer.
> >
> > I want to take a float (say 0.0) and output it with a space in front
> > if it's positive, - in front if it's negative, and be able to specify
> > how many numbers after the decimal get printed (padding with zeros).
> > This will be used to output currency, and I just know there's a
> > simple way to do it with Ruby, but not finding it. :-)
> >
> > Sorry to bother you all.
> 
> >> [123.456,-123.456].map{|f| sprintf "% 3.2f", f}
> => [" 123.46", "-123.46"]
> 
> You can also use printf with the same format for direct output.
> 
> Kind regards
> 
>     robert
> 
> 
> 

Or you can use the % operator on a string which I like better. I.e.
"%3.2f" % 1.0 #=> "  1.00"

regards,

Brian

-- 
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