1-START-HERE-constructor-exercise-readme.md

Book Constructor Exercise

Objective

Create a JavaScript constructor function called Book that represents a library book. Add prototype methods to manage book details and actions.

Instructions

Follow the steps below to create the Book constructor and add prototype methods.

1. Define the Constructor
   In your JavaScript file, start by creating a Book constructor function with the following properties:

   • title (string): The title of the book.
   • author (string): The author of the book.
   • year (number): The year the book was published.
   • genre (string): The genre of the book.

2. Add getSummary Prototype Method
   Add a method to the Book prototype called getSummary. This method should return a string summarizing the book's title, year and genre.

3. Add the isClassic Prototype Method Add a method to the Book prototype called isClassic. This method should check if the book is over 50 years old based on the current year. If it is, return true; otherwise, return false.

4. Add the updateYear Prototype Method Add a method to the Book prototype called updateYear. This method should accept a parameter, newYear, and update the book’s year property with it. Return a confirmation message in the following format:

   • "Publication year updated to "

5. Add the changeGenre Prototype Method Add a method to the Book prototype called changeGenre. This method should accept a parameter, newGenre, and update the book’s genre property. Return a confirmation message in the format:

   • "Genre updated to "

6. Testing Your Methods Now that you've created the Book constructor and its prototype methods, test them to ensure they work as expected.

   • Create an instance of Book with the following details:

     • Title: "To Kill a Mockingbird"
     • Author: "Harper Lee"
     • Year: 1960
     • Genre: "Fiction"

   • Run each of the prototype methods on book1 to confirm they work as expected.