Require a set of standard JSI to enable other JS framework to run with native framework of RN

[bojie-liu]

Introduction

Some company prefers Vue.js because of the Vue infrastructure. Some may try the rising Svelte because of the better performance in some use cases. These JS framework could run in most WebView due to the standard Web API. But when it comes to hybrid app, vue-native runs Vue in React so that it could run on iOS and Android. svelte-native depends on NativeScript to build cross-platform app.

I do not mean that React.js is a worse one. I am wondering if it is feasible that RN framework provides, maybe a subset of, DOM-like API to enable other JS framework to run with native framework of RN with minor change. IMO, RN would be more popular and hybrid app developers would benefit from the evolution and ecosystem of RN.

Details

For example, to run a basic Vue demo in RN, we need to import the following JS libraries from react-native:

• rendering: AppRegistry, UIManager, Dimensions
• network: RTCNetworking, WebSocket
• components: RCTDeviceEventEmitter, AssetSourceResolver

Going one step further, we don't have to import any libraries if we could call JSI instead of libraries API.

Discussion points

1. Is this a false proposition? Is there any different opinion about the need for running other JS frameworks with RN?
2. How to define the scope of RN-API in product scale if feasible? Should it be JS API or JSI? And the balance between flexibility and performance.
3. Any other concerned issue.