In this chapter, you learned about how the browser stores URL history, and how we can manipulate it to load different sections without full page reloads. It introduced a bit of complexity, but we also saw that there are other alternatives (for example, the hashchange event) that reduce the complexity while still reducing the number of full page reloads we need to perform.
You also learned about a popular React router and used it to abstract the manual location tracking or changing we had to do before.
In the next chapter, you'll learn about server-side rendering and application structure.