Counting number of anagram found in a sentence - Ruby Solution

anagram_count.rb

require 'byebug'

class AnagramCountChecker

  def initialize(str)
    @str = str
  end

  def sort_word(word)
    word.chars.sort_by { |ch| ch.ord }.join('')
  end

  def number_of_anagrams
    anagram_hash = {}
    @str.split(' ').each do |word|
      sorted_word = sort_word(word.gsub(',', '').strip)
      if anagram_hash.has_key?(sorted_word)
        anagram_hash[sorted_word] = 1
      else
        anagram_hash[sorted_word] = 0
      end
    end

    return anagram_hash.values.sum
  end
end

puts AnagramCountChecker.new('I saw this in aws, listen this was silent').number_of_anagrams()