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)

Sports News Combinator – the Final Version

In this chapter, we will add the finishing touches to our application, Sports News Combinator (SNC). So far, we have a running application, but the data is all hardcoded and we do not have routing for our different news sources.

In the last chapter, we learned about TypeScript functions, classes, interface, and how to write more object-oriented code. We also focused on Angular templates and binding, which form the backbone of how our application is able to present the data from the components.

In this chapter, we will focus on the following topics:

  • Decorators in TypeScript: We have used decorators in our application by the names of @Component and @NgModule. Here, we will understand what decorators are and how we can create our own.
  • Adding features in SNC: We will add the final pieces to our application by adding services, making...