class String
My extended string class
Public Instance Methods
palindrome?()
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Checking a string on a palindrome
# File lib/ndl_string.rb, line 22 def palindrome? true_string = downcase.scan(/\w/) true_string == true_string.reverse end
valid_brackets?()
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Checking the correct sequence of brackets in a string!
# File lib/ndl_string.rb, line 5 def valid_brackets? counter = 0 each_char do |char| if char == '(' counter += 1 elsif char == ')' counter -= 1 end return false if counter.negative? end counter.zero? end