Definitely recommend this book especially if you're a javascript efficienado with no knowledge or very little of type script and even if you have a lot of knowledge its still a good book to have. The book was filled with great examples and an easy to follow guide on how to incorporate types into ur javascript repos and libraries. Great book!

This is exactly the kind of tech writing that is needed today. It's really clear and to the point and not larded up with filler content.

*Edit. Dropping one star to four. While I stand by my original review I felt the need to adjust it after completing the book. A little more than half way through I came to the conclusion that the content was going to be insufficient ...and it was. You're going to want something with a bit more "meat" to it and by "meat" I mean greater depth to truly "enhance your web development skills".

This is my favorite resource for learning TypeScript. From introductory to advanced topics, It's all clear, concise, and comprehensive. I found Josh to be an excellent—and fun—writer 😃

: )

I must rate the content of this book as rather poor compared to many programming language books i have read. I am a coder with a background in Java, C#, and Python and I bought this because i recently started working on a new project at work that is developed in Typescript and Angular, so i wanted to understand the basics of Typescript better.

1st: The book has too many errors and they are almost all in the coding examples. This was leading me to be really confused on a few examples until i found the OReilly online errata website for errors in their books, and my suspicions were confirmed that the code was wrong in quite a few sections.

2nd: This books teaches in a way i dont much care for. It is only my opinion, but i'd like clear examples of the concepts, not brain teasers every chapter. The writing describes feature X, and then the code example follows purposefully written to be a brain teaser for feature X. Rarely is a simple example given. This, combined with the typos i mentioned, made reading these to get the basic understanding of Typescript feel like much more of a choir and makes it harder for me to use the book as a future reference.

Overall, though, I am halfway through the book and it isnt all bad. I have my complaints, but the information is ordered in logical way and i have seen technical books that go off course far too often, and this one does a good job of staying on topic.

This books is amazing! Would recommend if you want to gain deep understanding of typescript.

Excellent book, I read it cover to cover and worked through all of the Web exercises.

I'm an experienced JavaScript developer and wanted to start using TypeScript in my new projects. I read this book and now I am using TypeScript on a day today basis in production code.

The best part of this book was how language features are described and always backed up with sample code to illustrate the concepts. This approach really helped with my understanding of concepts.

Honestly, I can't recommend this book highly enough! The writing style and quality was top-notch and always hit on the topics with enough depth, but not too much.

If you want to learn TypeScript in a practical way and start using it, you can stop with this book, it's that good.

Really well structured, thorough, and easy to follow. A great resource for someone starting their journey with TS or for seasoned TS devs who want to more deeply understand the code that they write. Despite learning a lot and enjoying the book, I unfortunately couldn’t give the book 5 stars due to the amount of typos and inaccuracies throughout the book. Not just misspellings, but complete, obvious mixups, mistakes, or incorrect words used that could potentially be very confusing for someone new to TS. Did no one proofread this book before publishing??

I bought this book to enhance my knowledge about Typescript and I found what I wanted. 5/5

Easy to understand and no useless explications.

I love it! I love this book so much. I really appreciate the effort the author put into designing the exercises and especially into providing such clear, thoughtful solutions. I learned so much and truly enjoyed the author’s style.

Great resource on Typescript.

I have been using Typescript since 2017, but the book was really helpful to understand the littlet details about the Typescript.

Using as Const narrows the types, this was an amazing trick which I learned from the book.

Josh is a great teacher, book is recommended for anyone who wants to learn Typescript.

Indispensabile