Great introduction to React Native - only complaint is that some packages are outdated so the lessons on navigation are no longer relevant. The new navigation dependencies are '@react-navigation/native', '@react-navigation/stack', & '@react-navigation/native'.
Free React Native tutorial, What is react native?
If you need to develop an app for both iOS and Android, React Native is the best tool out there. It can reduce the codebase by about 95%, saving you time and money. On top of that, React Native has a number of open-source libraries of pre-built components which can help you further speed up the development process.Is react native a language?
React Native has the highest performance among cross-platform frameworks. ... It is an excellent framework that is easy to learn & offers good performance as well as an interface that is comparable to native apps. Moreover, some technology enthusiasts consider that react native apps are the future of hybrid mobile apps