From: Gennady Bystritsky <Gennady.Bystritsky@...>
Date: 2006-08-25T09:29:53+09:00
Subject: Re: Alternative to String#to_i ?

 

> -----Original Message-----
> From: dblack@rubypal.com [mailto:dblack@rubypal.com] On 
> Behalf Of dblack@wobblini.net
> Sent: Thursday, August 24, 2006 4:52 PM
> To: ruby-talk ML
> Subject: Re: Alternative to String#to_i ?
> 
> Hi --
> 
> On Fri, 25 Aug 2006, Jeremy Lizt wrote:
> 
> > Thanks to everyone for the quick response. The Integer 
> suggestion works
> > great, but I'll point out one wrinkle that I encountered:
> >
> > Integer nil # => 0
> >
> > That was a small surprise. (These zeros keep popping up when you may
> > not expect them!) My little conversion method now works 
> fine and looks
> > like this:
> >
> >  def string_to_i(str)
> >    if str.nil? then return nil else Integer str end
> >  rescue nil
> >  end
> 
> I can't resist:
> 
>    def string_to_i(str)
>      Integer(str) rescue nil unless str.nil?
>    end
> 
> :-)

Likewise ;-)

def string_to_i(str)
  str and Integer(str) rescue nil
end

Gennady.

> 
> 
> David
> 
> -- 
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