Today we are sharing the principles that guide the way we think about and work on React Native. https://reactnative.dev/blog/2020/07/17/react-native-principles

Native Experience: Our top priority for React Native is to match the expectations people have for each platform. This is why React Native renders to platform primitives. We value native look-and-feel over cross-platform consistency.

Massive Scale: Hundreds of screens in the Facebook app are implemented with React Native. The Facebook app is used by billions of people on a huge range of devices. This is why we invest in the most challenging problems at scale.

Developer Velocity: Great user experiences are created iteratively. It should only take a few seconds to seeing the result of code changes in a running app. React Native's architecture enables it to provide near-instant feedback during development.

Every Platform: When we introduced React Native in 2014, we presented it with our motto “Learn once, write anywhere” — and we mean anywhere. Developers should be able to reach as many people as possible without being limited by device model or operating system.

Declarative UI: We don’t believe in deploying the exact same user interface on every platform, we believe in exposing each platform’s unique capabilities with the same declarative programming model. Our declarative programming model is React.