Alexandre Portela dos Santos - Deno Web Development: Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno

Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno

Alexandre Portela dos Santos

BIRMINGHAMMUMBAI

Copyright 2021 Packt Publishing

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First published: March 2021

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To my parents, Ftima and Antnio, and to my brother Pedro. Thanks for your unconditional support you are the best. Wouldn't have made it without you.

To my friends, who helped me make this book a reality. Thank you, Felipe, Gonalo, Bruno, Nuno, Jnos, Joo, and Miguel for all the conversations, reviews, and suggestions.

Alexandre

Many of us witnessed a time where JavaScript was not considered a real language but rather a scripting tool for those who wanted to improve the user experience when interacting with the browser.

Its increasing popularity drove the JavaScript community to broaden its purpose. Suddenly, someone who was mainly skilled in client-side web development now had the chance to dive into the world of server-side with no language barrier. On top of that, they had something quite natural that was becoming trendy concurrency and event-driven design.

At the same time, looking around the programming language landscape over the last 10-15 years, other languages were being released as well, positioned to be more advanced alternatives leveraging the learnings of the traditional ones; simpler to package; removing legacy; providing more advanced standard libraries and features so that we developers could focus on delivering value to the end users of the software. There are, however, two trends worth highlighting. Concurrency and interoperability were topics we could see being addressed in all of them. Golang, Kotlin, Elixir, and Rust offered easier ways to handle concurrency, but they also provided an easy way to interop with other languages. You could use Erlang code in Elixir, Java code in Kotlin, C in Golang and Rust, and so on... Interop was critical for language adoption in existing legacy systems.

On one hand, most of these languages did well in solving a problem that Node.js was also solving while being quite mature because they leveraged existing ecosystems with interop capabilities. On the other hand, Node.js suffers from some design decisions that drag improvement in different areas such as security, packaging, and interoperability to name a few. One might say there's some catching up to be done...

Being a software engineer means being in an infinite loop of learning. This book is a remarkable achievement and a must-read in one iteration of that learning loop. It is an introduction to a new language that promises to fill some gaps, building a strong foundation to consolidate the reason why the most popular language in the world is even more everywhere Deno Web Development: Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno.

Miguel Loureiro

Chief Technology Officer, KI group

Alexandre Portela dos Santos is a software engineer passionate about products and start-ups. For the last 8+ years, he's been working together with multiple companies, using technology as an enabler for ideas and businesses. With a big interest in education and getting people excited about technology, he makes sure he's always involved with people that are learning about it, be it via blog posts, books, open source contributions, or meetups. This is, by itself, a learning adventure that Alexandre loves to be a part of. Being a true believer that great software only happens through collaboration, ownership, and teams of great people, he strives to nurture those values in every project he works on.

Maxim Mazurok is a software engineer with a focus on web development. He has 6+ years of enterprise experience in software product and e-commerce companies located in Silicon Valley, Ukraine, and Sydney.

He has applied this experience to teach teens the basics of web development and taught adults more advanced web technologies.

He is passionate about open source and sharing knowledge, an active GitHub contributor, and a Stack Overflow member, always happy to connect.

When not at the computer, he rides a bicycle, takes pictures of nature, and attends meetups and conferences.

Yusuke Tanaka is a software engineer living in Tokyo, Japan. After getting a BS degree in engineering at the University of Tokyo in 2019, he now works at STADIUM Co., Ltd. engaging in the development of a web application that provides an online job interview system. Although he uses TypeScript and Go at work, he has been enthusiastic about the Rust programming language for about 2 years and makes contributions to open source software related to Rust in his spare time. In particular, he is so interested in Deno and the core of Rust that he devotes a lot of time to them. To get in touch with him or for more details, feel free to visit his GitHub (@magurotuna) or Twitter (@yusuktan).

Acknowledgement

Firstly, I am grateful to the editors and publishers who gave me a chance to participate in such a wonderful project. And most of all, I would like to thank Alexandre Santos for making this book happen. I am delighted to get involved in this book, hoping it will help more people recognize the fantastic development experience with Deno.