class String
Public Instance Methods
letters()
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# File lib/andrewau_palindrome.rb, line 11 def letters self.gsub(/\W+/, '') end
palindrome?()
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Returns true for a palindrome, false otherwise.
# File lib/andrewau_palindrome.rb, line 7 def palindrome? processed_content == processed_content.reverse end
Private Instance Methods
processed_content()
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Returns content for palindrome testing.
# File lib/andrewau_palindrome.rb, line 18 def processed_content self.letters.downcase end