In this chapter, you learned the basics about JSX, including its declarative structure and why this is a good thing. Then, you wrote some code to render some basic HTML and learned about describing complex structures using JSX.
Next, you spent some time learning about extending the vocabulary of JSX markup by implementing your own React components, the fundamental building blocks of your UI. Finally, you learned how to bring dynamic content into JSX element properties, and how to map JavaScript collections to JSX elements, eliminating the need for imperative logic to control UI display.
Now that you have a feel for what it's like to render UIs by embedding declarative XML in your JavaScript modules, it's time to move on to the next chapter where we'll take a deeper look at component properties and state.