Simple Class Decorator That Logs on Console

simples_class_decorator.ts

function firstClassDecorator(constructor: Function) {
  console.log("first class decorator");
}

@firstClassDecorator
class User {
  public isActive: boolean;
  public role: "admin" | "user";
  constructor() {
    console.log("calling class constructor");
    this.isActive = true;
    this.role = "user";
  }
}

const user = new User();

console.log({
  isActive: user.isActive,
  role: user.role,
});