/* Object example 1 */

var obj = new Object();

/* Object example 2 */

var obj = {};

obj = {
    name: {
        first: 'Gandalf',
        last: 'the Grey'
    },
    address: 'Middle Earth'
};

/* Object example 3 */

function Book(title, pages, isbn){
    this.title = title;
    this.pages = pages;
    this.isbn = isbn;
    this.printIsbn = function(){
        console.log(this.isbn);
    }
}

var book = new Book('title', 'pag',  'isbn');

console.log(book.title); //outputs the book title

book.title = 'new title'; //update the value of the book title

console.log(book.title); //outputs the updated value

Book.prototype.printTitle = function(){
    console.log(this.title);
};

book.printTitle();

book.printIsbn();