From: Josh Cheek <josh.cheek@...>
Date: 2012-02-08T11:43:14+09:00
Subject: Re: Using _ like in Scala?

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On Tue, Feb 7, 2012 at 9:15 AM, Robert Klemme <shortcutter@googlemail.com>wrote:

> > Although what I'd really like would be a syntax for naming inline blocks,
> > then my editor could fold the block body inside the name, something like
> > %w[apple banana orange].each display
> >
> > And it would expand to something like
> > %w[apple banana orange].each { |display -> fruit| puts fruit }
>
> How would the above be derived from the line further up?
>
>
The name would have no impact on the language, it is still just a block
which takes one argument. It exists to help the developer (and be used by
the editor).


> > But never found anything I was very happy with.
>
> Actually in this case "puts fruits" would be the best solution. ;-)
> Did anybody suggest it before?
>
>
In this case, yes :P

Often examples become more complicated, I often feel that the contents of a
block are at a different level of abstraction from the containing code (the
block is a "how I do it" but I'd like to just look at a "what I am doing",
which is where the name has relevance).

On Tue, Feb 7, 2012 at 6:30 PM, Kevin <darkintent@gmail.com> wrote:

> > What -- like this?
> >
> >    $ irb
> >    >> fruits = ['apple', 'orange']
> >    => ["apple", "orange"]
> >    >> puts fruits
> >    apple
> >    orange
> >    => nil
>
> Yes.  Does this only work in the REPL?  I've never tried that kind of
> order in real code.
>
>
No, this works everywhere. It is just how the puts method deals with arrays
http://rubydoc.info/stdlib/core/1.9.3/IO:puts

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