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However for a new React project, I considered using Flow. Expo is implemented with Flow and as far I know create-react-native-app doesn’t have great TypeScript support.įor a while I wrote React projects in TypeScript, React Native projects in Flow, and everything was love and all was well. In React Native, Flow feels more natural. If you are building a React project, TypeScript is a bit more of a natural choice: it has a great integration with create-react-app and material-ui (a go-to library for UI in React apps) has first class support for TypeScript.
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But should you use Flow or TypeScript? The Dilemma The same level of type safety doesn’t seem to be available with other libraries. With JSX, we have a unified type system across the logic of the application, its styling, and its presentation. Every time I stumble over a bug, I ask myself: “Could this have been caught by static analysis?” Type safety is also one of the reasons why I prefer React over other frameworks such as Angular or Vue. I use types as a single source of truth between different components of my apps. I always try to put the maximum pressure on static code analysis. Strict Types: Typescript, Flow, Javascript - to be or not to be?įlow and TypeScript are both fantastic ways to limit technical debt in your JavaScript projects, allowing you to, among other things, evolve your codebase with confidence.
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