From: Robert Klemme <shortcutter@...>
Date: 2006-06-22T21:24:52+09:00
Subject: Re: Ruby goodies?

2006/6/22, dblack@wobblini.net <dblack@wobblini.net>:

<snip>excellent list all of which I completely agree</snip>

What I also like is that it's OO is so clean and easy that I end up
creating classes all the time - even for simple scripts.  Often that
involves just MyClass = Struct.new(:foo, :name; :bar) and I can
immediately use MyClass instances as Hash keys etc.  In Perl, for
example, I'd probably end up using arrays all the time because
creating classes is so tedious and error prone (at least it was the
last time I tried).

Also, Hash is very powerful - especially considering the form with the
block for missing elements.  It makes many scripts very easy.

collect = Hash.new {|h, k| h[k] = []}
...
# don't worry about non existing keys here:
collect[my_key] << something

And then there are all those nifty details, e.g. String, IO and Array
implement << so you can pass any of these to a method that "appends"
something and it will work.  There's a lot of these convenient things
in Ruby.

Kind regards

robert

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