# Pastebin Z1QxhG2o
class A {
  static #privateMethod() { }
  
  static #privateProp = 5;
  
  publicMethod1() {
    this.constructor.#privateMethod();
  }
  
  publicMethod2() {
    this.constructor.#privateProp;
  }
}

class B extends A {}

const x = (new B()).publicMethod1();
const y = (new B()).publicMethod2();