React.js is a popular client-side JavaScript framework that has become quite popular since it was introduced about two years ago. Earlier this year, Facebook unveiled a new library based on React.js, called “React Native.” This framework is for native mobile apps, rather than Web applications, but uses the existing React paradigms. In this talk, Tom Occhino reviews the past and present of React.js, and then describes where it is going, in React Native. If you have heard about React.js but don’t quite know what it does, or would like to use JavaScript for native app development, this talk should explain much of it to you.