What level of knowledge do you have in TypeScript and how extensively have you studied it?

I have confident basic knowledge of TypeScript: I understand typing, interfaces, union and intersection types, generics, as well as working with modules and decorators.

I studied TypeScript to improve code quality in Node.js projects, using it for API and business logic typing.

I have in-depth knowledge of the features of the type system, such as conditional types, mapped types, and utility types, which allow creating more flexible and safe types. I am also familiar with compiler configuration and integrating TypeScript into build tools.