1class Something {
2  #property;
3
4  constructor(){
5    this.#property = "test";
6  }
7
8  #privateMethod() {
9    return 'hello world';
10  }
11
12  getPrivateMessage() {
13      return this.#privateMethod();
14  }
15}
16
17const instance = new Something();
18console.log(instance.property); //=> undefined
19console.log(instance.privateMethod); //=> undefined
20console.log(instance.getPrivateMessage()); //=> hello worl