Book Image

Mastering TypeScript - Fourth Edition

By : Nathan Rozentals
4.7 (3)
Book Image

Mastering TypeScript - Fourth Edition

4.7 (3)
By: Nathan Rozentals

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript, designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Mastering Typescript is a golden standard for budding and experienced developers. With a structured approach that will get you up and running with Typescript quickly, this book will introduce core concepts, then build on them to help you understand (and apply) the more advanced language features. You’ll learn by doing while acquiring the best programming practices along the way. This fourth edition also covers a variety of modern JavaScript and TypeScript frameworks, comparing their strengths and weaknesses. You'll explore Angular, React, Vue, RxJs, Express, NodeJS, and others. You'll get up to speed with unit and integration testing, data transformation, serverless technologies, and asynchronous programming. Next, you’ll learn how to integrate with existing JavaScript libraries, control your compiler options, and use decorators and generics. By the end of the book, you will have built a comprehensive set of web applications, having integrated them into a single cohesive website using micro front-end techniques. This book is about learning the language, understanding when to apply its features, and selecting the framework that fits your real-world project perfectly.
Table of Contents (19 chapters)
17
Other Books You May Enjoy
18
Index

Angular setup

Angular uses a command-line tool known as the Angular CLI to facilitate the creation of Angular applications and components. The Angular CLI can be installed using npm as follows:

npm install -g @angular/cli

Here we are installing the package @angular/cli globally using npm. Once installed, the Angular CLI provides a utility named ng, which can be used to create an Angular application as follows:

ng new angular-app

Here, we are invoking the Angular CLI and specifying that we wish to create a new angular application named angular-app. The Angular CLI will ask a few questions when creating an application, such as whether we would like to enforce strict type checking, whether to include Angular routing, and which stylesheet format we would like to use. In this sample application, we chose Yes for strict type checking, Yes for Angular routing, and SCSS for the stylesheet format.

Once the Angular CLI has completed, let's switch to the newly created...