Book Image

TypeScript 2.x By Example

By : Sachin Ohri
Book Image

TypeScript 2.x By Example

By: Sachin Ohri

Overview of this book

The TypeScript language, compiler, and open source development toolset brings JavaScript development up to the enterprise level. It allows you to use ES5, ES6, and ES7 JavaScript language features today, including classes, interfaces, generics, modules, and more. Its simple typing syntax enables building large, robust applications using object-oriented techniques and industry-standard design principles. This book aims at teaching you how to get up and running with TypeScript development in the most practical way possible. Taking you through two exciting projects built from scratch, you will learn the basics of TypeScript, before progressing to functions, generics, promises, and callbacks. Then, you’ll get to implement object-oriented programming as well as optimize your applications with effective memory management. You’ll also learn to test and secure your applications, before deploying them. Starting with a basic SPA built using Angular, you will progress on to building, maybe, a Chat application or a cool application. You’ll also learn how to use NativeScript to build a cool mobile application. Each of these applications with be explained in detail, allowing you to grasp the concepts fast. By the end of this book, you will have not only built two amazing projects but you will also have the skills necessary to take your development to the next level.
Table of Contents (11 chapters)


TypeScript has been a revolution in client-side development. It has taken mainstream concepts, such as types, classes, interfaces, generics, and decorators, and introduced them to the JavaScript world. The best part is that TypeScript does not introduce any new language but provides features that are currently in TC39 discussions for JavaScript.

All JavaScript code is valid TypeScript code, which allows developers to migrate and use TypeScript in the existing application. In this book, we will comprehensively cover TypeScript features, from basic features to advanced ones. We will introduce the features along with hands-on application development to aid better understanding.

Along with TypeScript, we will also look at Angular and learn the intricacies of the framework. We will be developing two applications along the way and both these applications will use Angular as their frontend framework.

By end of this book, we will look at the NativeScript framework, which will help us convert our Angular/TypeScript applications to native mobile platform applications. We will also look at Microsoft Azure as our cloud platform to deploy our web applications.

The purpose of this book is to provide readers with the knowledge of TypeScript and Angular so that they can build real-world applications effectively and efficiently.