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React Key Concepts
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A key concept of React is the usage of so-called components. Components are reusable building blocks which are combined to compose the final user interface. For example, a basic website could be made up of a header that includes a navigation bar and a main section that includes an authentication form.
Figure 2.1 An example authentication screen with navigation bar.
If you look at this example page, you might be able to identify various building blocks (i.e., components). Some of these components are even reused.
In the header with the navigation bar you will find the following components:
Login and Profile)Logout buttonBelow this, the main section displays the following:
New Account pagePlease note that some components are nested inside other...