React Native is a JavaScript framework for writing real, natively rendering mobile
applications for iOS and Android. It’s based on React, Facebook’s JavaScript library
for building user interfaces, but instead of targeting the browser, it targets mobile
platforms. In other words: web developers can now write mobile applications that
look and feel truly “native,” all from the comfort of a JavaScript library that we already
know and love. Plus, because most of the code you write can be shared between plat‐
forms, React Native makes it easy to simultaneously develop for both Android and
iOS.
