We covered a lot, but were pretty productive! We talked a lot about how to take full advantage of the better and cleaner syntax that Babel offers us in a Create React App 2 project!
Even this is really just scratching the surface of what you can do in modern JavaScript, but it covers a lot of the common patterns and tricks that you'll see throughout this book. We hope this guide will give you everything you need to be able to execute projects and to understand and contribute at the highest levels!
We'll be exploring a lot of these code techniques in future chapters, so make sure you have a firm grasp of everything we discussed in this chapter before you forge ahead!