JSFiddle - React, Tailwind, and code Playground

by bingjie2680

JavaScript

function Book(title, author) {
   this.title = title;
   this.author = author;
}

   // Replacing the default prototype object
   myPrototype = new Object();
   Book.prototype = myPrototype;
   Book.prototype.price = 9.99;
   Book.prototype.constructor = Book;
  
   // Modifying the base prototype object
   Object.prototype.copyright = "herongyang.com";
   
   // Creating an object from my constructor
   var myBook = new Book("JavaScript Tutorials", "Herong Yang");
console.log(myBook );