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

Summary

In this chapter, we have explored the concepts of generics, including how TypeScript defines a specific syntax for generics, and how we can constrain generic types in certain circumstances. We then discussed how we can use generics with interfaces, and how to create new objects within generic code. The second section of this chapter explored advance type inference, starting with mapped types, and then moving on to conditional types. We discussed distributed conditional types, conditional type inference, and finally took a look at standard conditional types that are available to use with a standard TypeScript installation.

In the next chapter, we will explore asynchronous language features, and how we can use specific TypeScript language constructs to help with the asynchronous nature of JavaScript programming.