Comments about O'Reilly Media JavaScript Patterns:

Great read, I learned a lot from this book. I do agree with Mike, though - the first half is definitely better than the second half.

Comments about O'Reilly Media JavaScript Patterns:

Liked roughly the first half of it, but found the latter half somewhat boring. Reading long code samples like "this is how I would implement in JavaScript" makes for a good reference, but not really an entertaining read. On the other side, the "good to know" parts, conventions and tricks in the beginning were really useful.

All in all, well written and a decent read, but I for one got the feeling it's mostly an implementation reference about converting patterns from a language to another, without much consideration for the actual problems they solve.

Comments about O'Reilly Media JavaScript Patterns:

This book gets into the good stuff right away with well-written clear examples. I just wish there were a few more chapters with more real-world sample applications. Nice job.

Comments about O'Reilly Media JavaScript Patterns:

I did not read it but I discover one nasty bug in your code at page 75. IE test:

if (typeof document.attachEvent === 'function')

will never return true in IE because typeof will return 'object' instead of 'function'. Most common test is

if (!window.opera && window.attachEvent)

to be sure that we are using IE and not Opera and just test presence of attachEvent function by implicit type conversion.

Comments about O'Reilly Media JavaScript Patterns:

I've read through the book and thoroughly enjoyed the journey. It's not often a book is targeted so closely to the level I'm at when I start the book. I've learnt a lot from reading it, and it lives in my laptop bag now as a handy reference for when I need to look up a good way to implement something or just want to refresh my skills on closures when I've spent too long in C# code.

Stoyan explains the techniques and their pros and cons very well and gives concise working examples of the techniques or patterns.

The only thing I didn't like about the book was the end - I wish there wasn't one.

Comments about O'Reilly Media JavaScript Patterns:

Learning these patterns and best practices will change the way you code. It will entirely transform you into a professional and experienced programmer.[@]

Comments about O'Reilly Media JavaScript Patterns:

"JavaScript Patterns" takes the reader from a very basic understanding of JavaScript all the way to some very advanced language structures and patterns. The book uses lots of examples throughout, and it explains everything from best practices to how to implement advanced JavaScript data structures and patterns (singleton, function chaining, inheritance, callbacks, etc.). The book compares different patterns for achieving the same result throughout and draws conclusions about the best methods for different scenarios. There are plenty of code snippets demonstrating both good and bad examples that help to walk the reader throughout the intricacies of the language.

The book was very well written and answered all of the questions that I had pop to mind as I read it. It is written in a way that captures the readers attention while not being overly wordy or getting bogged down on unimportant topics. The vast number of code snippets and examples allow the reader to quickly go from even a rudimentary understanding of JavaScript to an expert level understanding. This book is more focused on learning how to implement advanced data structures and patterns in JavaScript, so it would be very helpful for someone working on JavaScript libraries like jQuery and others. However, if you are just planning to do some basic JavaScript for a website, this is not the right book for you.