Implementing inc and dec logic
In the last video, we created quantity controls for our cart items and stubbed a corrosponding
Let's now implement the logic of these two methods.
inc method logic
Let's begin with
inc. We're passing in the item that the user wants to increment. So the logic for the quantity will simply be
Keep in mind we also need to increment the
total value as well by the price of the item. We can do that by going
this.total += item.price.