Secrets of the JavaScript Ninja, Second Edition

One of the best books to turn your JS knowledge from intermediate to advanced, I loved every chapter. Concepts are explained in such a granular way that even if you haven't read about it much before hand, you'll be able to get a grasp of it and follow along.

I've been looking to pick up a great JS book for people who already know how to program, and this one is great. Just finished 3rd chapter, and so far the book is amazing: explanation on browser and functions is one of the best I have ever seen. A must have, must read book for anybody serious about learning not just how to wire things together, but really understand JS.

Livro muito bom que ensina muitos conceitos importantes. Realmente te leva para outro nível de Javascript. Porém não é muito interessante para iniciantes na linguagem

Compre este libro para un regalo. Contenta con la compra.

Compré este libro y superó mis expectativas totalmente, hay cosas que ya damos por hecho pero en este libro te da una explicación sencilla del porque. Con este libro se entienden desde los conceptos más sencillos aprendiendo su nombre y forma de trabajo, hasta conceptos avanzados como ciclos de vida de los eventos y cómo son lanzados. Este libro lo debería tener todo fan y desarrollador del lenguaje javascript. Y el precio en amazon es apenas por encima de su precio en USD marcado. Lo busqué en librerías pero era demasiado caro y solo lo manejaban por pedido. Soy desarrollador web y estoy muy conforme con el contenido del libro. Esta muy bien impreso y las hojas son de buena calidad (es un papel suavecito como sedoso).

I almost didn't read this book because of the name, as my assumption was that it was a beginner level JS book. I'm so glad that I decided to read it. This book is most definitely NOT a beginner book. However, it is written in easy to understand language. It covers all the major topics a good JS developer should understand. Closures, the context of 'this' depending on how a function is invoked, the use of apply(), call(), and bind() to set context, arrow functions and how they affect context, using apply() to supply a variable list of arguments, maps, memoizing functions, object orientation with prototypes, regular expressions, timers and threads, generators and promises, writing modular code, and much more. I actually own the first edition of this book, and decided to get this edition as well. There is of course some duplication between the two versions. but there is also a huge amount of new material in this edition. It is well worth getting the 2nd edition even if you already own the 1st edition. The book series You Don't Know JS: Scope & Closures , You Don't Know JS: this & Object Prototypes , and the other 4 volumes are also excellent intermediate level books (one of them is a beginner book), but they are a little more technical and not quite as easy to understand as this book. I don't believe there are any advanced level books. You get to the intermediate level, and then you program for about 10,000 hours to get to the advanced/expert level. On the other hand, Eloquent JavaScript, 2nd Ed.: A Modern Introduction to Programming is a pretty good book that will take you from beginner up to the intermediate level. Lastly, JavaScript: The Definitive Guide: Activate Your Web Pages (Definitive Guides) has long been the JS bible for years, but it is now getting a little dated. When a new version ever gets released, I'd buy it immediately. JavaScript: The Good Parts also gets a lot of recommendations, but it too is getting a little dated.