ruby inject examples

gistfile1.txt

# This example from RubyMonk Ruby Primer:Ascent 7.1 in the discussion on 'inject'.

def occurrences(str)
	str.scan(/\w+/).inject(Hash.new(0)) do |build, word| 
	# Changing Hash.new(0) to {} breaks this
  	build[word.downcase] +=1
  	build
	end
end