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)

Getting Started with TypeScript

"JavaScript that scales."

"TypeScript is a typed superset of JavaScript that compiles to plain JavaScript."

"Any browser, any host, any OS, and open source."

These are official statements by the TypeScript team.

"Surprisingly simple, extraordinarily powerful."

This is how I describe TypeScript.

The purpose of this book is to provide readers with an opportunity to see and understand the preceding quotes and appreciate TypeScript for its power and elegance.

In this chapter, we will introduce TypeScript and take a brief look at its features that help us write client- and server-side (Node.js) applications that are scalable, maintainable, reusable, and future-proof.

The fundamental principle of TypeScript is that it's a superset of JavaScript and all valid JavaScript is a valid TypeScript. This allows developers...