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makaroni4/count_words.rb

Created February 27, 2016 22:57
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count_words.rb
input = ["red", "green", "blue", "red", "blue"]
output = input.each_with_object(Hash.new(0)) do |word, o|
o[word] += 1
end
p output
# {"red"=>2, "green"=>1, "blue"=>2}
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