Technical books

#webdev #javascript #beginners #tutorial

In this post, we will be building a Technical Book class that inherits from the Book class from one of the previous challenges. The Technical Book class will have an additional element, edition. We will also provide a function that returns a string that includes the book's edition.

/**
 * Goal is to create a Technical Book class that inherits from
 * the Book class from one of the previous challenges.
 * It also has a fifth element, an edition.
 * Provide a function that returns a string that includes the book's edition
 */

First, let's start by creating the Book class and an instance of the TechnicalBook class.

class Book {
  constructor(title, author, ISBN, currentCopies) {
    this.title = title;
    this.author = author;
    this.ISBN = ISBN;
    this.currentCopies = currentCopies;
  }
}
class TechnicalBook extends Book {
  constructor(title, author, ISBN, currentCopies, edition) {
    super(title, author, ISBN, currentCopies);
    this.edition = edition;
  }
}

To test the function we will write shortly it is important to create a few books, that we can use.

const firstBook = new TechnicalBook(
  "The best technical Book",
  "mrs. Author",
  123456567,
  0,
  "first"
);
const secondBook = new TechnicalBook(
  "The mostest technical Book",
  "mr. Author",
  9876543,
  4,
  "third"
);
const thirdBook = new TechnicalBook(
  "The best Book of technicalities",
  "mrs. Author Jr.",
  1212345121,
  5,
  "fifth"
);

To get the information about the book, we can create a function that returns a string that includes the book's information.

TechnicalBook.prototype.bookEdition = function () {
  return console.log(
    `The book ${this.title} was written by ${this.author} with ISBN: ${this.ISBN} and is the ${this.edition} edition. We have ${this.currentCopies} in stock`
  );
};

firstBook.bookEdition();
secondBook.bookEdition();
thirdBook.bookEdition();

/*Result:
The book The best technical Book was written by mrs. Author with ISBN: 123456567 and is the first edition. We have 0 in stock 
The book The mostest technical Book was written by mr. Author with ISBN: 9876543 and is the third edition. We have 4 in stock 
The book The best Book of technicalities was written by mrs. Author Jr. with ISBN: 1212345121 and is the fifth edition. We have 5 in stock 
*/

And that's it! With this solution, we were able to create a TechnicalBook class that inherits from the Book class and also has an additional element, edition. We also provided a function that returns a string that includes the book's edition. This can be further customized and expanded upon to suit your needs.