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
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18
Index

A Vue application

In this section of the chapter, we will build a shopping cart application using the techniques that we have learned up until now with Vue. In our previous chapter, we built a product list and product details application using React, with the ability to specify how many of a particular item we would like to purchase.

This Vue application is intended to receive this information, and take over the display of a shopping cart. Our Vue application will need the ability to adjust the amount of a particular item we would like to purchase, as well as calculate the total cost (including tax and shipping) that a purchase would incur.

Application overview

An overview of the components we will build is shown in the following diagram:

Figure 13.7: Logical view of Vue components for the shopping cart application

Here, we start with the App.vue component, which will instantiate a collection of items in our shopping cart, and store it as a local state property...