Understanding our HelloWorld app

This is great. We've got the app running in our simulator. Sure, it required a little bit of work to install the necessary tools, but the good news is that the only thing we'll need to do from this point forward is run the react-native init AppName command whenever we wish to create a new app. All our tools are installed and we're ready to start developing. But before we get into the meat and potatoes of React Native, let's quickly take a look at what exactly the React Native CLI provided us. Open up package.json in your text editor of choice. I'm using Atom (https://atom.io/) as shown in the following screenshot:

I want to call your attention to dependencies section. Here, you should only see two items listed: react and react-native. At the time of writing, React Native is at stable version 0.35.0. Given the pace of updates to React Native, yours is likely newer. That's fine. Just keep your version in mind when seeking out help with React Native questions...