tss-react VS ts-ast-viewer

What I meant is that the lib provides the tooling to do CSS-in-JS if you so choose. But it's not at all mandatory. There is a fully type safe class system you can rely on. Internally no CSS-in-JS is used. I personally do love CSS-in-JS (I'm the author of TSS) but I understand the case against it.

I'm not big on splitting things in neat little modules. Before we had logic.js structure.htm, styles.css then React suggested that logic and structure should be in the same file, it was the right move. Styles, in my oppignion, should be done in JS as well as well. I think that queries shouldn't be mangled with the UI stuffs.

Real-life examples: 1, 2, 3

Material UI v5 brought some amazing updates, but switching from JSS to Emotion had an arguably nasty side-effect: it was no longer as straightforward to group your component styles in classes. Fortunately, a fantastic library emerged that allowed developers to not only reduce the extreme pain from migrating all their classes from v4's makeStyles to emotion, but to also to continue to writing classes in practically the same syntax, with wonderful TS type-safety. This library was tss-react, and it was one of my favorite open source discoveries of 2021.

You can still use makeStyles with tss-react, as documented here: https://mui.com/guides/migration-v4/#2-use-tss-react. I've used it and it seemed to work quite well.

tss-react

TypeScript AST Viewer

TypeScript AST Viewer - This viewer was useful in guessing the internal concepts and behavior of the Compiler API.

For those who are trying to use the typescript API to build file you can use this : https://ts-ast-viewer.com/

You can check ast-viewer Consider this example: typescript type Result = keyof HTMLDivElement Click in ast viewer on Result type, you will see something like that: Type keyof HTMLDivElement ... value:"align" value:"addEventListener" value:"removeEventListener" ... If you want to have more control over AST, you can check ts-ast-viewer repo

(As an aside, I used the ts-ast-viewer web app to generate this hierarchy. ts-ast-viewer is a project started by David Sherret that allows you to visualize and explore the AST for any TypeScript program. It was invaluable in helping me figure out the structures for this project.)