I found this book (and the accompanying patterns site) really useful read for improving how I think about code quality. Osmani breaks down complex design patterns into digestible parts, making it great for both beginners and experienced developers. I appreciated the practical examples across chapters.

The opening line, 'Good code is like a love letter to the next developer who will maintain it,' really sums up the book's philosophy. It's about writing code that's clean and considerate of others who might work on it later. He's got a decent essay that was published (I think?) after the book going into that in more detail.

Btw for folks wondering how this may differ to the patterns site, it focuses a lot more on vanilla/modern JS syntax than React, but does ramp up on this topic later on (and I did like the thinking around rendering/performance etc).

I have no doubt about the content, but book quality is pretty bad. Texts are blurring on many pages which is hard to read.

Thanks. This is great

This is not a book about learning. It's about about reviewing, it's useful, but it's not what I expected.

I expected some type of guide, a quick way to write better React code but it's more about showing you each of the patterns.

I expected some type of guided practice from taking one piece of code and re-writing it better.

Happy to recommend this! There are few good modern takes on how design patterns should be thought about using modern JavaScript and React features, but this book solves that well. Thought the author did a good job covering the topic and the examples in the supplementary code site were also super handy.

I have already looked through this book and it includes great content. Thank's, Amazon, for delivering it!

This second edition had exactly what I was looking for. It took a fresh look at all of the JavaScript design patterns, keeping in mind that the language has evolved heavily since the first edition (we now have ES Modules, Classes, Promises etc). I also really liked that it had a nice ramp up to React design patterns and also talked about how this interweaves with other considerations like performance. Would happily recommend to others.

Loved the first one and this one is just as great 💪🏾

Its a must-have book for any JavaScript developer who wants to write better, more maintainable code. The book covers a wide range of patterns, from basic to advanced, and provides clear and concise explanations of each one. The Addy (the author) also includes code examples and real-world use cases, making it easy to learn and apply design patterns to your own projects. I am a regular followers of Addy’s posts in linkedin and all his books which really helped me to upskill in my career.

I highly recommend this book to any JavaScript developer who wants to take their skills to the next level.

It's structured and well written, good code examples. Can't really fault it.

It was a lot of old content, like using JQuery, I found useful some things but like half of the book is not really helping me improve in the frontend development.

This book is the “written version” of the Patterns.Dev website. I bought it to reference actual pages in a scientific thesis. However, for learning and casual reading, I’d actually recommend the website instead as it features diagrams, code sandboxes and so on.

The book’s content is still great, though. It’s just not worth it compared to the web version.

Waste of my time. I didn't find it useful.