Introduction to advanced TypeScript features

With each release, TypeScript takes big strides forward, adding features and capabilities that build on the basics of the language that were introduced back in version 1. Since then, JavaScript has moved on and TypeScript has added features to target emerging standards, providing implementations for older implementations of JavaScript or by calling native implementations when targeting updated ECMA standards. In this first chapter, we are going to look at some of these features, which we will be using throughout this book.