missing details and useless code samples
This book is quite disappointing, I read more than half of it and still feel unconfident with javascript. The author missed a lot of details to cover, such as in the book sometimes the code statements end with semicolon while sometimes don't, but I was never told that's because you can omit semicolon if your statement is in different line. After reading more than half of the book, I found only one code example is interesting and helpful, the rest of them are just superficial and nearly useless. I can confidently say you will find much better book than this one.
A detailed JavaScript source but does contain vital errors
I borrowed this book from the library, I enjoyed some chapters on detailed descriptions of JavaScript and all of its capabilities but I was not impressed with the CD-Rom which did not work due to broken links to images etc. The reason for them not working was because the images had not been placed on the CD-Rom ... Whoever checked the errors in this book should be ashamed of themselves.
I would give this book an average mark mainly due to the CD-Rom not working. I would not suggest buying it for this reason but lending it is recommended.
I wouldn't wish this book on an enemy.
This book is an exercise in frustration. It gives sketchy (or no) descriptions of object's properties and methods, it lets you know what the properties and methods are but (about 90% of the time) doesn't tell you how to use them. It has very little code, and what it does have is useless snippets which show you nothing practical (unless you are writing a book). It includes numerous methods and functions that IE6 doesn't recognize (neither did my HTML editor). This book is a big, thick waste of money.
Great for beginner to intermed. level JavaScript programmers
I started programming JavaScript using this book as a reference about a year ago and it's gotten me through a variety of coding situations. This book has a lot of applicable examples to explain the material. I'd highly recommend it as a "must-have" book for people who are just starting out with JavaScript and looking for a book that has working examples.
Serves as an effective and reliable reference
Alan Wyke's revised, expanded and updated, JavaScript Unleashed, Third Edition continues to serve as an effective and reliable reference to the JavaScript language for the high-end programmer as well as a guide for developing JavaScript applications from the ground up. The topics most important to the intermediate to advanced Javascript programmer are informatively covered, including Web security, integrating JavaScript with Java, and forms and data validation. Intermediate - Advanced, 1100 pages.