This book is an exploration of TypeScript, which is a superset of JavaScript. The first part of the book explains to you what TypeScript is and what it is used for. You will also learn how it is related to JavaScript. The book also guides you on how to install TypeScript on Windows and on other platforms. Type annotations, which are very good in defining how the program is indented, are discussed, and thus, you will learn how to work with them. Interfaces,...