An implementation of each_with_objects and map_with_objects for ruby

enum_with_objects.rb

module Enumerable

  def each_with_objects(*args, &block)
    return to_enum(:each_with_objects, *args) unless block_given?
    each do |obj|
      yield obj, *args
    end
  end unless method_defined?(:each_with_objects)

  def map_with_objects(*args, &block)
    return to_enum(:map_with_objects, *args) unless block_given?
    map do |obj|
      yield obj, *args
    end
  end unless method_defined?(:map_with_objects)

end


p (1...10).each_with_objects(2, 4).to_a
p Array.new(14) { [] }.map_with_objects(2, 4, &:push)