From: Milo Thurston <knirirr@...>
Date: 2007-08-09T20:00:05+09:00
Subject: Re: Collect objects from an array based on one unique parame

Robert Klemme wrote:
> selection = things.select {|x| x.name = "foo"}

That is closer, but still not quite it.
A slight change of my previously posted code may make it clearer. In 
this case I start with an array of "Thing" objects called "things", and 
would like an array called "uniquely_named_things" containing Things 
where the name is unique.


check = Hash.new
uniquely_named_things = Array.new
things.each do |s|
  if check[s.name].nil?
   uniquely_named_things << s
  end
  check[s.name] = 1
end

Basically, I wonder if anything that does the same as this has already 
been included in Ruby.
-- 
Posted via http://www.ruby-forum.com/.