“cara menyimpan objek baru yang dibuat oleh kelas konstruktor data di penyimpanan lokal menggunakan javascript” Kode Jawaban

cara menyimpan objek baru yang dibuat oleh kelas konstruktor data di penyimpanan lokal menggunakan javascript

// constructor function

function Book(title, author, pages, read = false) {
  this.title = title;
  this.author = author;
  this.pages = pages;
  this.read = read;
  this.status = function() {
    console.log(this.read);
  }
}

// array to store objects

let mybooks = [];

// instances of the Book object

let book1 = new Book('Hello', 'John', 123, true);
let book2 = new Book('Hey', 'Jane', 13, false);
let book3 = new Book('Hi', 'Mary', 12, true);
let book4 = new Book('Holo', 'Peter', 10, false);
let book5 = new Book('Banda', 'Banda', 03, true);

// push the instances to the mybooks array

mybooks.push(book1);
mybooks.push(book2);
mybooks.push(book3);
mybooks.push(book4);
mybooks.push(book5);

// store mybooks to the localStorage

localStorage.mybooks = JSON.stringify(mybooks);

// retrieve data from the localStorage

let data = JSON.parse(localStorage.getItem('mybooks'));

// call the status() method on each object

data.forEach(book => {
  book.status();
});