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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

Interfaces

Here we have an example of a simple interface that defines the shape of a user object:

interface UserInterFace {
    email: string,
    token: string,
    resetPassword: ()=> boolean   
}

In the preceding code, we have defined an interface that we can implement on any object that should follow rules defined in our interface. The advantage this gives us over other web languages such as vanilla JavaScript is that all objects that implement this interface have to follow the structure defined by the interface. This means that our objects are now strongly typed and have language support such as syntax highlighting, autocompletion, and the throwing of exceptions when implemented incorrectly. If you are a developer working on a large application, this is very important as you have defined the rules and can now be sure that all the objects that implement UserInterFace will have the same properties as those...

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The TypeScript Workshop
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