This is a paid asset, but now you can download ReactUI – A WebGL React-based UI system for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
ReactUI – A WebGL React-based UI system v1.2
ReactUI allows you to design and manage user interfaces with a state-of-art, modern and powerful framework: React. Not only: it allows you to use all tools and plugins you use in web development to implement a game’s user interface.
Speaking about tooling, it comes with a pre-set environment composed by:
– webpack as bundling/building system
– Less as CSS super-set
– Babel as Javascript transpiler, so your Javascript code can run on old browsers too
– React as Virtual DOM rendering engine
It comes with a powerful and extensible event system, that allows you to easily raise and manage events from the game or the UI. This is possible thanks to a special Javascript/C# bridge, integrated in the package.
Last, but not least, it comes with a little game sample that shows you simple interactions from game => UI or from UI => game.
This plugin is specific for WebGL-based games!