inheritance.js

class User {
    constructor(username){
        this.username = username
    }
    logMe() {
        console.log(`USERNAME is ${this.username}`);
    }
}

class Teacher extends User{
    constructor(username,email,password){
        super(username)
        this.email = email;
        this.password = password
    }

    addCourse(){
        console.log(`new course was added by ${this.username}`);
    }
}
const chai = new Teacher("chai","chaicode@goo.com","123")
chai.addCourse()