class User {
    constructor(name, email) {
        this.name = name;
        this.email = email;
    }

    login(date){
        this.date = date;
        console.log(`${this.email} logged on ${this.date}`);
    }
}

class Admin extends User {
    constructor(name, email, rank){
        super(name, email);
        this.rank = rank;
    }
    givePrivilige(privilage){
        console.log(`${this.email} has privilige ${privilage}`);
    }

}

const user = new User("john", "john@gmail.com");
user.login("2020-12-01");

const admin = new Admin("jane", "jane@gmail.com", "site-admin");
admin.login("2020-12-01");
admin.givePrivilige("deleteUsers");
console.log(admin);