ReactJS is a library for creating view components. In fact, React doesn't even label itself as a view library—it's a set of tools for creating components that render UI elements. This simple premise is easy to understand and powerful—a perfect fit as the view technology in our Flux architecture.
In this section, we'll look at making ReactJS the technology of choice for views in our Flux applications, starting with passing state information from stores into React components. Next, we'll talk about the composition of views, and how Flux state flows from stores to parent views to child views. Lastly, we'll implement some event handling capabilities in our views using React mechanisms and a router using the react-router library.