February 2018
Intermediate to advanced
456 pages
9h 56m
English
Now that we are able to log in and log out of our application, we need to add another page so the users can create accounts on our application and place orders.
There are some rules that we want to enforce when creating a new account. The rules are:
If any of these rules are not followed, we will not create the user account, and an error should be returned to the user.
With that said, let's add a small helper function that will verify whether a field has a value that already exists in ...