From: John Feminella <johnf@...>
Date: 2011-02-11T05:34:23+09:00
Subject: Re: RCR feedback: Numeric#grouped

Try this:

==== begin snippet ====
class Numeric
  def separate(sep=",")
    self.to_s.reverse.scan(/(?:\d*\.)?\d{1,3}-?/).join(sep).reverse
  end
end

100.separate
 => "100"

100000.separate
 => "100,000"

1000000000.separate
 => "1,000,000,000"

1000000000.separate('.')
 => "1.000.000.000"

10000.12345.separate
 => "10,000.12345"
==== end snippet ====

~ jf
--
John Feminella
Principal Consultant, BitsBuilder
LI: http://www.linkedin.com/in/johnxf
SO: http://stackoverflow.com/users/75170/



On Thu, Feb 10, 2011 at 14:59, Roger Pack <rogerpack2005@gmail.com> wrote:
> Hello all.
> I notice in ruby there's an easy to way to input "separated" number:
>
> 1_000_000
> 1_000_000.0
>
> But there doesn't seem to be an easy way to "separate" digits when
> outputting.  At least I'm not aware of any.
> The end goal would be something like
>
> print "human readable with commas: #{1_000_000.0.grouped(',')}"
>
> human readable with commas: 1,000,000.0
>
> Does this already exist and, if not, any feedback (method name,
> suitability) for its addition?
> Thank you!
> -r
>
> --
> Posted via http://www.ruby-forum.com/.
>
>