Ruby substrings exercise

substrings.rb

# Return a hash listing each substring present in the dictionary found in the string
def substrings(string, dictionary)
	count = Hash.new(0)
	dictionary.each do |word|
		count[word] = string.scan(/#{word}/).length if string.scan(/#{word}/).length != 0
	end
	puts count
end


dictionary = ["below", "down", "go", "going", "horn", "how", "howdy", "it", "i",
			"low", "own", "part", "partner", "sit"]

substrings("below", dictionary)
substrings("Howdy partner, sit down! How's it going?", dictionary)