Chapter 6: Data Storage
DATA STORAGE IS fundamental in nearly all applications, web or desktop. This can include storing a unique key to track page impressions, saving usernames and preferences, and so on. The list is endless.
Up until now, storing data in a web app required you to either store it on the server side and create some linking key between the client and the server—which means your data is split between locations—or store it in cookies on the client.