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EdDeAlmeidaJr/most_common_letter_03.rb

Created May 14, 2016 22:08
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most_common_letter_03.rb
def most_common_letter(string)
counts = Hash.new(0)
string.each_char {|c| counts[c] += 1 }
counts.max_by{|k,v| v}
end
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