Codecademy export

app.js

class Media{
  costructor(title) {
    this._title= title;
    this._isCheckedOut = false;
    this._ratings = [];
  }
  
  get title(){
    return this._title;
  }
  
  get isCheckedOut(){
    return this._isCheckedOut;
  }
  
  get ratings(){
    return this._ratings;
  }
  
 
  set isCheckedOut(value) {
    this._isCheckedOut = value;
  }
  
  toggleCheckOutStatus(){
    this.isCheckedOut = !this.isCheckedOut;
  }

  getAverageRating(){
    let sum = this.ratings.reduce((accumulator, currentValue) => accumulator + currentValue);
     return (sum/this.ratings.length);
  }
  
  addRating(newRate){
    this.ratings.push(newRate);
    
  }
}

class Book extends Media{
  constructor(author, title, pages){
    super(title);
    this._author = author;
    this._pages = pages;
  }
  
  get author(){
    return this._author;
  }
  
  get pages(){
    return this._pages;
  }
}

class Movie extends Media{
  constructor(director, title, runTime){
    super(title);
    this._director = director;
    this._runTIme = runTime;
  }
  
  get director() {
    return this._director;
  }

  get runTime() {
    return this._runTime;
  }
}

let historyOfEverything = new Book('Bill Bryson', 'A Short History of Nearly Everything', 544);

historyOfEverything.toggleCheckOutStatus();
console.log(historyOfEverything.isCheckedOut);

let media = new Media ('sector');
console.log(media.ratings);
media.addRating(3);

//console.log(historyOfEverything.ratings);
//historyOfEverything.addRating(4);
//historyOfEverything.addRating(5);
//historyOfEverything.addRating(5);