Read: Class 41 React Native - Goorob-401-advanced-javascript/amman-javascript-401d1 GitHub Wiki

React Native Ecosystem It’s still just state and components But no HTML or CSS You can still “style” things using the framework guidelines Expo Expo Is the dev environment Snack is an online sandbox expo-cli is the local equivalent to create-react-app (you can eject) Running locally, you can use your own device or the official simulator Only Apple users can test iPhones Anyone can test android, but you need to start up an ADB from The Android Studio IDE