Hello there! In this lesson, we will apply Maps to real-world challenges. Our focus will be on solving tasks such as cataloging books in a library, counting votes in an election, and tracking inventories.

Suppose you're asked to manage the cataloging of books in a library. Here, the book ID serves as the key, while the details of the book, such as the title, author, and year of publication, are stored as values. This approach allows us to add, search for, and remove books from our library catalog using TypeScript, with enhanced readability and error-checking through type annotations.

With the use of TypeScript, our Maps make the task of cataloging books in the library more efficient, readable, and type-safe.

Imagine a scenario in which we need to count votes in an election. By employing a Map, where each name is a unique key, and the frequency of that name serves as the associated value, we can efficiently count votes. Below is the TypeScript code to achieve this: