class Person {
  constructor(name, age) {
    this.name = name
    this.age = age
  }
  greet() {
    console.log(`Hello, ${this.name}`)
  }
}

let p = new Person("Jake", 20)
console.log(p)
p.greet()

class Employee extends Person {
    constructor(name, age, role) {
        super(name, age)  
        this.role = role
    }
}

let e = new Employee("James", 25, "Clerk")
console.log(e)
e.greet()