module GoatatworkPalindrome
Constants
- VERSION
Public Instance Methods
letters()
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Returns the letters in the string.
# File lib/goatatwork_palindrome.rb, line 10 def letters self.chars.select { |c| c.match(/[a-z]/i) }.join end
palindrome?()
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Returns true for a palindrome, false otherwise.
# File lib/goatatwork_palindrome.rb, line 5 def palindrome? processed_content == processed_content.reverse end
Private Instance Methods
processed_content()
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Returns content for palindrome testing.
# File lib/goatatwork_palindrome.rb, line 17 def processed_content self.to_s.scan(/[a-z0-9]/i).join.downcase end