How do I accept only letters in the Ruby entry?

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Given a string, you have to take only uppercase and lowercase letters. And in the output show them. How can I achieve this result?

string ruby

1 answer

1

class String
  def pega_maiusculas
    self.scan /\p{Upper}/
  end
  def pega_minusculas
    self.scan /\p{Lower}/
  end
end

str = "Teste TeStE tEsTe"
maiusculas = str.pega_maiusculas
minusculas = str.pega_minusculas

puts maiusculas
puts "\n"
puts minusculas

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