def display_price(grocery,batch)
    grocery_price = grocery.send(batch).price
    if grocery_price
      number_to_currency(grocery_price)
    else
      "NA"
    end
  end

def loop(func,matrix)

matrix.each { |matrix| display_price(@grocery,matrix) }

end


the "func argument" in the loop function is suppose to be
display_price but how do i put it in if the "batch" is the thing that
I want to be looped through?