This Boilerplate will give you a proper development environment with testing, linting, env configuration, type checking and CI support!
If you would like to know how i created this boilerplate or even want to create it yourself, please check out my blog post: https://medium.com/@ch1ll0ut1/how-to-setup-react-native-with-typescript-the-new-way-6c1f1cce6ed3
yarn global add expo-cli
yarn start
This will open a new window with expo web interface and allow you to scan the qr code with your iphone camera or the expo android app which lets you open this react-native mobile app.
Now you can start editing files and the app will automatically refresh and show you your latest changes.
For build read more at the official expo documentation: https://docs.expo.io/versions/latest/distribution/building-standalone-apps
yarn test
yarn lint
yarn validate