React Native is an open-source UI software framework developed by Meta Platforms (formerly Facebook Inc.).
Inside Facebook, Jordan Walke found a way to generate UI elements for iOS from a background JavaScript thread, which became the basis for the React web framework.
They decided to organize an internal Hackathon to perfect this prototype in order to be able to build native apps with this technology.
[4]: §Chapter 2 It runs in a background process (which interprets the JavaScript written by the developers) directly on the end-device and communicates with the native[4]: §Chapter 2 platform via serialized data over an asynchronous and batched bridge.
[23] TypeScript is often used over JavaScript in modern React Native applications due to its increased type safety.