Flow ships by default with React Native, but how can you use it?
It seems that Flow is less of a commitment than TypeScript since it uses regular
.js files instead of
We start by initializing a new React Native project (without Expo) by running:
npx react-native init flow in our terminal where ‘flow’ is the name of the project. This can be any valid name you want.
Try and run the bare app on your device or emulator. I will be using a physical Android device and run it using
npx react-native run-android . Make sure you’re in the correct directory.
After running the bare app we will continue with the setup for Flow. We already have a
.flowconfig file, but we are missing the dependency.
npm i --save-dev flow-bin to install Flow as a dev dependency.
App.js and you can already see the first Flow syntax. Your IDE might give you errors for it. I’m using WebStorm as it has built in support for Flow and it is free for students.
Article covers: How native is react native?, React Native vs (Ionic, Cordova), Similarities and difference between React Native and Native App Development.
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