Beginning React

Decompose a User Interface

To better understand how to design a user interface and how to create components to implement them, we will try to decompose a well-known web user interface—the YouTube main page:

We can detect several items on this page, each having a specific role, starting with the page itself, whose role is to allow the user to interact with the system.

If we consider the header, the left sidebar, and the main area, all of these items are components of the page. You can see them highlighted in the following screenshot:

Of course, ...