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The TypeScript Workshop

The TypeScript Workshop

By : Ben Grynhaus , Jordan Hudgens , Rayon Hunte , Matt Morgan , Wekoslav Stefanovski
4.7 (18)
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The TypeScript Workshop

The TypeScript Workshop

4.7 (18)
By: Ben Grynhaus , Jordan Hudgens , Rayon Hunte , Matt Morgan , Wekoslav Stefanovski

Overview of this book

By learning TypeScript, you can start writing cleaner, more readable code that’s easier to understand and less likely to contain bugs. What’s not to like? It’s certainly an appealing prospect, but learning a new language can be challenging, and it’s not always easy to know where to begin. This book is the perfect place to start. It provides the ideal platform for JavaScript programmers to practice writing eloquent, productive TypeScript code. Unlike many theory-heavy books, The TypeScript Workshop balances clear explanations with opportunities for hands-on practice. You’ll quickly be up and running building functional websites, without having to wade through pages and pages of history and dull, dry fluff. Guided exercises clearly demonstrate how key concepts are used in the real world, and each chapter is rounded off with an activity that challenges you to apply your new knowledge in the context of a realistic scenario. Whether you’re a hobbyist eager to get cracking on your next project, or a professional developer looking to unlock your next promotion, pick up a copy and make a start! Whatever your motivation, by the end of this book, you’ll have the confidence and understanding to make it happen with TypeScript.
Table of Contents (16 chapters)
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Preface

Introduction

In the previous chapter, we learned about asynchronous programming using callbacks. With this knowledge, we can manage concurrent requests and write non-blocking code that allows our applications to render web pages faster or serve concurrent requests on a Node.js server.

In this chapter, we will learn how promises allow us to write more readable, concise code to better manage asynchronous processes and forever escape deep callback nesting, sometimes known as "callback hell." We will explore the evolution of the Promise object and how it eventually became part of the JavaScript language. We'll look at different transpilation targets for TypeScript and how TypeScript can enhance promises and allow developers to leverage generics to infer return types.

We will work on some practical exercises, such as managing multiple API requests from a website and managing concurrency in Node.js. We will use the Node.js FileSystem API to perform asynchronous operations...

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The TypeScript Workshop
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