From: akbarhome <akbarhome@...>
Date: 2007-06-22T19:05:11+09:00
Subject: Re: avoiding nil.methodcalls short and cheap

On Jun 22, 4:53 pm, Thorsten Rossner <ross...@gmx.de> wrote:
> Hi,
>
> I often have to check if a methodcall A is not returning nil before
> calling another method on the return value of the methodcall A. I'm
> looking for a short and cheap (avoiding to call method A two times like
> in this example where xmltag.get_text is method A:
> textvalue = xmltag.get_text.value if xmltag.get_text
> )
> The ideal solution would be a oneliner with only little complexity
> calling method A just one time. Am I using the wrong approach here
> anyway?
>
> Thanks,
> tr!
>
> --
> Posted viahttp://www.ruby-forum.com/.
Consider this:

begin
  textvalue = xmltag.get_text.value
rescue NoMethodError
end