Adzz · June 16, 2019 15:08
diff --git a/zip_blog_post_5.ex b/zip_blog_post_5.ex
 defimpl Add, for: Decimal do
  def calculate(decimal, decimal_2 = %Decimal{}), do: Decimal.add(decimal, decimal_2)
 end

 list_1 = [Decimal.new(1), Decimal.new(2)]
 list_2 = [Decimal.new(3), Decimal.new(4)]
 Zip.apply(list_1, list_2, Add) #=> [Decimal.new(4), Decimal.new(6)]
	defimpl Add, for: Decimal do
	def calculate(decimal, decimal_2 = %Decimal{}), do: Decimal.add(decimal, decimal_2)
	end

	list_1 = [Decimal.new(1), Decimal.new(2)]
	list_2 = [Decimal.new(3), Decimal.new(4)]
	Zip.apply(list_1, list_2, Add) #=> [Decimal.new(4), Decimal.new(6)]