From: ahoward <ahoward@...>
Date: 2003-02-28T07:01:47+09:00
Subject: Re: 'each' returning array

On Fri, 28 Feb 2003 nobu.nokada@softhome.net wrote:

> Hi,
>
> At Fri, 28 Feb 2003 06:01:31 +0900,
> Wojciech Kaczmarek wrote:
> > Is there a way to transparently accumulate expresions evaluated within
> > a block into an array, without introducing an external variable? For
> > example, I'd like to write something like this:
> >
> > "HAL".each_byte__returning_array {|x| (x+1).chr} .collect # more processing
>

> Enumerator in "rough".
>
>   require "enumerator"
>   "HAL".enum_for(:each_byte).collect {|x| (x+1).chr} # => ["I", "B", "M"]

how have i lived so long without knowing that!

can you explain more?

-a

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