Application data and UI state
When we have a separation of concerns that sticks presentation in one place and application data in another, we have two distinct places where we need to manage state. Except in Flux, the only place where there's state is within a store. In this section, we'll compare application data and UI data. We'll then address the transformations that ultimately lead to changes in the user interface. Lastly, we'll discuss the feature-centric nature of Flux stores.
Two of the same thing
Quite often, application data that's fetched from an API is fed into some kind of view layer. This is also known as the presentation layer, responsible for transforming application data into something of value for the user—from data to information ...