Constructor invocation

contructorInvocation.js

var Book = function(title) {
	this.title = title;
}

// Let's add a method to Book
Book.prototype.getTitle = function() {
	return this.title;
}

// Create an instance of Book
var myBook = new Book('A noontide blazing');

console.log(myBook.getTitle());
// output: "A noontide blazing"

// Now add a new property to Book 
Book.prototype.pages = 200;

// My object inherits the new property even after the instantiation
console.log(myBook.pages);
// output: 200