javaScriptProjects/buildAlibrary.js at master · AngieCristina/javaScriptProjects · GitHub

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//Build a Library with classes

class Media {
  constructor(title, isCheckedOut, ratings) {
    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 ratingsSum =
   this.ratings.reduce ((currentSum,rating)=>
   currentSum + rating)
   return ratingsSum/this._ratings.length
  }
  addRating(value){
  this.ratings.push(value)
}
}


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
  }
}
const story = new Book ('HP','Piedra filosofal',550)
story.toggleCheckOutStatus()
console.log(story.isCheckedOut)
story.addRating(4)
story.addRating(5)
story.addRating(5)
console.log(story.getAverageRating())

const speed = new Movie ('Jan de Bont','speed',116)
speed.toggleCheckOutStatus()
console.log(speed.isCheckedOut)
speed .addRating(1)
speed .addRating(1)
speed .addRating(5)
console.log(speed.getAverageRating())