How to correctly write the type of the argument so that the static properties of the class are visible?

Question

typescript

There is the following code:

class A {
  static b = 123;
}
function f(cls: new() => A) {
  console.log(cls.b); // Ошибка: Свойство "b" не существует в типе "new () => A".
}

Can you tell me how to make TypeScipt understand that clsI want to get a class Ain, along with static properties?

Answer 1

So?

class A {
  public static b: number = 123;
}
function f<T extends {b: number, new (...args: any[]): InstanceType<T>}>(cls: T) {
  console.log(cls.b);
}

Answer 2

class A {
  static b = 123;
}
function f(cls: typeof A) {
  console.log(cls.b); 
}