What vs code extensions do you use for reactjs?

Question

React

For example, emmet is harmful only for JSX, or automatic replacement of class with className (I'm sure these should exist)

Answer 1

I'll tell you a secret - you type in the word react in extensions and you get a ton of everything.
And if you need something specific, you can always use custom snippets. For example, I have a snippet for the abbreviation dc. Same for span, for arrow functions, for try/catch block, for media queries in css, etc.