Just pointing this out to absolve future confusion: This comment is very off-topic.

- WebAssembly is a new low level language for client-side scripting in web browsers. Future web browsers will support WebAssembly in the same way they currently support JavaScript. WebAssembly has a number of advantages over JavaScript, including performance and an AST-like syntax that makes it more suitable as a compilation target.

- NativeScript is a framework for developing "cross-platform" mobile apps. It achieves this through a JavaScript/TypeScript API and common UI components that are implemented natively on both iOS and Android.

I have not tried NativeScript and I am skeptical of projects that aim to "bridge the gap" in mobile development. iOS and Android are ever-evolving and so you must rely on the platforms that target them to stay up to date. Further, these platforms have very different design goals and the compromises that frameworks like NativeScript make often come at the expense of user experience.

NativeScript could be great! But please be aware of the shortcomings of eschewing native development.

Spreading the worst part of web to other platforms?