Add shuffle method to Array class : Array Extension « Array « Ruby






  1. Ruby
  2. Array
  3. Array Extension

Add shuffle method to Array class


class Array
  def shuffle!
    each_index do |i|
      j = rand(length-i) + i
      self[j], self[i] = self[i], self[j]
    end
  end

  def shuffle
    dup.shuffle!
  end
end








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