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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

Executing JavaScript

When a JavaScript execution environment, such as a node or a browser loads a JavaScript file, it parses it and then runs it. All the functions that are defined in a JavaScript file are registered, and all the code that is not in a function is executed. The order of the execution is according to the code's position in the file. So, consider a file having the following code:

console.log("First");
console.log("Second");

The console will always display this:

First
Second

The order of the output cannot be changed, without changing the code itself. This is because the line with First will be executed completely – always – and then, and only then, will the line with Second begin to execute. This approach is synchronous because the execution is synchronized by the environment. We are guaranteed that the second line will not start executing, until and unless the line above it is completely done. But what happens if the...

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The TypeScript Workshop
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