Nance - Typescript Essentials

Christopher Nance is an experienced software engineer and has been developing rich web applications for more than 4 years. At KnowledgeLake, he adopted TypeScript to develop a series of reusable components to scale across multiple product offerings and platforms.

I would like to thank my parents for their constant support and encouragement. I would also like to thank my team at KnowledgeLake for pushing me to improve my skills as an engineer.

Andrea Martinelli is a passionate software developer who is currently working on Shaman.IO, a tool that automatically detects and extracts structured data from the Web.

In the past, he worked on Songr, a music player and aggregator. His interests span across web data extraction, code performance, and statically typed languages. He is a proficient C# developer and has been interested in TypeScript since its initial announcement. He graduated from the University of Trento in Computer Science and then studied at the Technical University of Denmark, even though he is now dedicating more time to the Shaman.IO project while moving across Europe.

I would like to thank my friends, especially Gianluca and Stefano, for always being supportive. I would also like to thank Prof. Filz, who was one of my most influential teachers in high school. Thanks also to Mads, a special person that I will never forget. And to my family, who I haven't seen for quite a long time.

Nathan Rozentals has been writing commercial software for over 23 years, starting with COBOL on mainframes, through C, on to C++ and Java, and finally settling on C# and ASP.NET.

He picked up TypeScript in October 2012a day after the 0.8.0 releaseand could not put it down. In TypeScript, he found a language that could bring all of the design patterns and practices he had learned over the yearsin a variety of languagesto JavaScript.

Some 6 days after the 0.8.0 release, he began blogging about TypeScript; covering a variety of topics, including unit testing, implementing an IoC container, and organizing code with AMD modules. He knew he had hit the mark when Microsoft themselves started to reference his blog in their CodePlex discussion forums.

You can find his blog at http://blorkfish.wordpress.com.

He currently works in the health industry, bringing touchscreen interfaces to medical systems, thereby enabling BYOD for clinicians and hospital staff.

He is passionate about code quality, unit testing, and continuous integration, and has helped many large teams implement CI across many different software projects in many different languages.

When he is not coding, he loves windsurfing and playing soccer. He is also an avid Liverpool FC supporter.

I would like to thank my partner, Kathy, for her never ending love and support, and for giving me the freedom to spend long hours working on something that I am so passionate about. You are the best.

To Ayron and Daynayou are always in my thoughtsyour enthusiasm for life and curious nature have given me such inspiration. I will always be there for you.

Basarat Ali Syed (BAS) is a senior developer and the go-to guy for frontend issues at Picnic Software (http://picnicsoftware.com/) in Melbourne, Australia. He has a Master of Computing degree from Australian National University and graduated with high distinction in all courses. He is a familiar face at developer meetups and conferences in Australia and has been a speaker at events such as ALT.NET, DDD Melbourne, MelbJS, and Node.js meetups, among others. He is deeply passionate about web technologies. He is a known member of the TypeScript community and works on the DefinitelyTyped team (https://github.com/DefinitelyTyped). In his spare time, he enjoys bodybuilding, cycling, and maintains a YouTube channel for helping fellow developers (http://youtube.com/basaratali). You can easily find him on Twitter @basarat, www.github.com/basarat, and www.basarat.com.

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Preface

This book is a quick and useful guide to learning the TypeScript language. The language features that TypeScript provides on top of JavaScript are covered thoroughly in this book with hands-on examples. TypeScript is a fairly new development language that can ease the pain of normal JavaScript development. Starting from downloading the compiler, covering language features, and implementing a dynamic application, this book will leave you ready to create new, large-scale JavaScript-based applications.