From: Daniel Finnie <danfinnie@...>
Date: 2008-01-08T03:43:38+09:00
Subject: Re: Where do I put the ".to_f" ?

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String#scan as you are calling the scan method of a string instance.  String
is known as the receiver.

Dan

On 1/7/08, Peter Bailey <pbailey@bna.com> wrote:
>
> Robert Klemme wrote:
> > On 07.01.2008 19:06, Peter Bailey wrote:
> >>
> >> I get this from Ruby:
> >> sizer.rb:10: undefined method `to_f' for [["5100"]]:Array
> >> (NoMethodError)
> >
> > Your error is in using #scan (see the docs for details).
> >
> > This works better
> >
> > width    = info[/Image Width: ([0-9]{1,5})/, 1].to_f
> > ...
> >
> > Cheers
> >
> >   robert
>
> Thank you very much. Yes, that works perfectly. That whole square
> bracket thing you use there is new to me. When you say "see the docs,"
> what should I look for? For "String#scan" or for Regex. . . .?
> --
> Posted via http://www.ruby-forum.com/.
>
>

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