Check if word is a palindrome

palindrome.rb

def is_palindrome(string_to_check)

	if string_to_check.length == 0
		return false
	end

	the_start = 0
	the_end = string_to_check.length - 1

	palindrome_found = true

	while the_start <= the_end

		left_char = string_to_check[the_start]
		right_char = string_to_check[the_end]

		if left_char != right_char
			palindrome_found = false
			break
		end

		the_start = the_start + 1
		the_end = the_end - 1
	end


	return palindrome_found
end


words = %W"radar racecar buzz abba aba aa bbb test aaabbb abcdefghhgfedcba abcdefghxzhgfedcba"

words.each do |word|
	puts "Is #{word} a palindrome? #{is_palindrome(word) ? 'Yes' : 'No'}"
end