This React as a UI Runtime by Dan Abramov is very detailed article to “understand the React programming model in more depth“. According to Dan, this article is aimed at “experienced programmers and folks working on other UI libraries who asked about some trade offs chosen in React”.
This is a deep dive — THIS IS NOT a beginner-friendly post. In this post, I’m describing most of the React programming model from first principles. I don’t explain how to use it — just how it works. Dan Abramov- Overreacted
In deed, this a very long deep dive article and takes several reads to understand about React programming model.