From: 7stud -- <lists@...>
Date: 2012-12-29T05:14:24+09:00
Subject: Re: Ruby Koans regarding Hashes.

> ...which I currently have no idea how that could be useful, but it is
> still interesting...  heh

string = "Hello world, hello mars, goodbye world."
word_count_for = Hash.new(0)

string.scan(/\b \w+ \b/x) do |word|
  word = word.downcase
  word_count_for[word] += 1
end

p word_count_for

--output:--
{"hello"=>2, "world"=>2, "mars"=>1, "goodbye"=>1}

-- 
Posted via http://www.ruby-forum.com/.