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)

Adding features to SNC

In the previous chapter, we started with our Sports News Combinator application, created one component, and populated the data in it. We are using Angular and TypeScript for our application built with Angular CLI (command-line interface). The following is the Sports News Combinator architecture, which we defined in the previous chapter:

In the previous chapter, we developed News Component and App Component. In this section, we will refactor our existing code to add features that you learned in this chapter, such as interfaces and functions to make the app more robust. We will also add a couple of components for header and footer to provide a better look and feel to our application. From Angular perspective, we will also look at binding and interpolation techniques.

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