Palindrome word

palindrome.rb

def palindrome?(word)
  initial_word = word.downcase.gsub(/[^a-z0-9]/, '')
  reversed_word = initial_word.reverse
  initial_word == reversed_word
end

puts 'Typing a word:'
input = gets.chomp

if palindrome?(input)
  puts "\"#{input}\" is a palindrome word."
else
  puts "\"#{input}\" is not a palindrome word."
end