Reading Class 31 - meron-401n14/seattle-javascript-401n14 GitHub Wiki

Different parts of react native 1.the native code and 2.javaScript code

The Native code manages, well, the native stuff. It is written in Objective-C (iOS) or Java (android). Though as an app developer rarely touch it that doesn’t mean it is a minor piece of react. Native app – it’s a large piece of the puzzle. What React Native does is take your javaScript and use that logic to interact with the native code. In short react Native exposes many native APIs to us.

The javaScript code , on the other hand , is where you ‘ll spend most of your time. You use different API’s (be them core React Native or from a thirdparty package) to interact with the underlying native implementations.