On: TypeScript 5.0

[recursive]

"higher order class" is not a term I've heard before. I'm not sure what that could mean.

Decorators are syntactic sugar for higher ordered functions. They fundamentally have the same capability, just with better ergonomics.

[zdragnar → recursive]

Functions can return new class definitions- the "class" keyword represents an expression, not a statement.

As such, you could write a function that takes in as an argument a class, and return a new class definition that extends the argument you provided... Or any number of other dubious practices.

[com2kid → recursive]

Sorry, I meant a function that rips a class open, messes with it, and returns a new class!