Head First JavaScript Programming: A Brain-Friendly Guide

This book keeps you engaged, and keep you moving - even if you don't have a good reading practice of Technical books. I have read about closures in Java 8 and groovy articles, but I completely understood it only from this book. The coining of the word 'free variables' - variables which are neither local nor global, but declared in the enclosing functions is very good. The definition and explanation that - functions returned from other functions which has also free variables attached to it (in its environment), and those free variables are live variables and not a copy is a very good explanation. For experienced programmers in other languages (say 5 to 9, which I am ) , you will find this book interesting only if you write answers to the problems and have a pencil with you all the time. Else, it will be a book containing very basic programming constructs which you might know it already. but, if you write the answers, you may find that you made some mistakes and you will wonder why For experienced javascript programmers, I am not sure whether you will find it more exiciting, but certain chapters on - Objects, Prototypes, event handling will help you to keep your basics strong. Few instances are 1. In a chapter - "they build a War Ship Game", the whole code will be divided into Controller, Model and View. This is well explained and would let you think that, even a small peice of code should not hang on the JS file, but go inside a object as a method or a property. The control should start and end like this : EventHandlers triggered by windows.onload --> Controller -> Model ->View 2. The transition from each topic was very good. They described about variables and functions (global and local), and then they explained why it has to be inside a Object Literal. and later described why they have to be inside a Contructor (Object object rather than Object Literal), and then they explain why all the commonly used functions and variables should be inside a Prototype, and finally, they explained Prototypical inheritance. 3. All the hanging functions (alert, prompt etc.,,) and objects (console) are properties of window object. Also, all the user defined global variables and functions would be attached to the window object 4. Also, by default "this" would be pointing to window object. Whenever you call a function on a Object Literal or object, the "this" will point to that object instance(that is why you refer the variable with this inside a member method). also, whenever you can a constructor with new, an object will be created, and "this" will point to that object inside the constructor. 5. Also, when a instance is returned by the constuctor, a Constructor.prototype object (an empty object) will be also be attached the object instance. this will help you to understand prototypical inheritance a lot better in the later chapter. 6. Math is an Javascript supplied object. Date, RegExp are constructors. That is why you would always write Math.random(), and new Date(), new RegExp(/^\d{3}-?\d{4}/). This book is NOT for javasript programmers who are very good in their basics. I cant comment on this a lot, because I just now started to work on my first javascript project, but aspiring to be a good one by end of this year. For aspiring programmers (who were never programmers), I think, this is a very good book to start your career.

First a comment about the "head first" book concept. The concept was up to the promise: easy to read, still covers advanced topics, lots of exercises and puzzles, but I actually did them all, when i tend to ignore them in other books. This is because the exercises had the perfect dosage of difficulty and time required. Also even if the book is 650 pages thick, I never felt submerged by text or discouraged. Now about that specific book: i was an advanced beginner when started reading this book, and this was an easy and pleasant read. What I liked most, is that the book tries to teach not just the feature of the language in isolation, but as a whole. It's the first book I read that tries to show you what it really means to program in an oriented object way, and thinking functionally. That is very different than just explaining what an "object" or "function" is. For this alone this book stands apart. I look at my code differently now, and try to see how to leave behind the procedural way of programming. This books also made me realize there is a long long road ahead to become truly efficient with object oriented and functional programming. This can only be reached with experience, but at least I know in which direction to go. This is perhaps the best first book for an aspiring Javascript programmer. Make no mistake, this is not a reference book, but a teaching book. It will teach you the grammar of the language. For the vocabulary, look at Flanagan's Javascript definitive guide.

Is it strange to say that a Javascript book has a great ending? Well, this one did. I'm not one of the people who was asked to do a review. I just bought a hardcopy and actually read every word on every page for my own use - just a regular web developer looking to deepen my understanding. My skill level: I've been studying Javascript for a couple of years and have used it a lot at my new job in the last 6 months. Sometimes I inherit projects that have pre-existing Javascript that is sometimes pretty complex. We also use some frameworks and libraries like jQuery, Express, nodeJS, and AngularJS. So, I got this book to understand all those things better. About the Book: The book itself is steady and clear with a variety of projects and written in a friendly tone. It starts from zero, so if you know nothing, you're in the right place. If, like me, you've been working in it and have wondered what some of the parts do at a fundamental level but haven't had a chance to get to the bottom of it, this book will probably cover it. Even though it covers the basic stuff, it also gets into advanced topics. In fact, the last three chapters are worth the cost of the book alone. The chapter on prototypal inheritance upped my game in one evening. No kidding. My Experience with the Book: It's over 600 pages but flows pretty quickly considering the topic. If like me, you've been working with Javascript, you might find the first 400 pages or so to be a refresher and zoom through. After about pg. 400, I started running into more bits of info and concepts that really clarified some things. That's where I really started getting grateful that they'd done all this hard work. As I went through this book, I was also going through the 12 hour series "Crockford on Javascript" at the same time. He gets pretty in depth in some of it and on a spooky number of occasions I'd just learned a concept the night before in this book that Crockford would then discuss. Much to my delight I understood everything he went into where I know I would have missed things had I not had this book in my back pocket. My Full Assessment: Just get the book. It's great - every page. Work your way through it and then watch the 'Crockford on Javascript' series (free on YouTube) and you'll prove to yourself just how cool you are. Then go get that dev job. They don't use dollar signs in programming languages for nothing. :)

Even though this book is now outdated since ES6 has come out and prototypes have long been left out by developers, it still is a fantastic introduction to JavaScript. After reading it, I was able to write my first programming project - a snake game. Whenever you're reading this review, check if there hasn't come out a new edition. And even if it hasn't yet - buy this one. You won't regret it. Once you build the foundation, the rest comes easily. And this here provides a solid foundation, no doubt.

Learning code is like learning the alphabet. There cannot be a book or another resource which can teach you something new or different than there is. It is in this mind-numbing genre that Head First Javascript Programming makes a splash. Skillfully written with an intent to evoke interest, stoke thought, tickle your ribs, and enable retention, this is a special book you just won't put down easily. Elisabeth Robson and Eric Freeman seem to have mastered the art of 'programming fiction'. This is my second Head First book, the first one being Head First HTML, CSS and XHTML. I remember being thoroughly immersed in it, and even today, I have kept it in a place where I can see it every day! More importantly, be warned, this book is not a definitive guide to Javascript. As is the norm, you may need to turn to more resources before you eventually become an expert. But, this book is the best starting point. Believe me, you won't be disappointed you invested in it.

Livre très très intéressant, bien écrit, agréable à lire et très détaillé avec de nombreux exercices à faire pas à pas ! Pour toute personne souhaitant un support fiable pour débuter dans l'univers du Javascript.

I do not indulge in writing reviews here on Amazon or anywhere, but I am compelled to come here and share my experiences. This book is so d*** good, it has actually helped me understand another programming language (C#) better. Although I do have a copy of Head First C#, but the style, manner of delivery, patience and humour in this book (Head First Javascript) make it an awesome read. It is by far the best value for money book I have bought in a LONG time (and trust me, I buy loads of books) - including or especially programming books. I have been reading this book like a Robert Ludlum thriller...quickly digesting and turning the pages in a hurry to see what I would learn next. The way some programming concepts were explained by the authors (in the context of Javascript of course) has made me smile and pause so many times in wonderment, as to why other programming books could not be written this way. I know it has been the style and philosophy of the Head First movement to combine hand-scribbled annotations with cartoons, 1940's images and jokes, but never has it all come together so well as in this book. As I write this review, I have just passed the half-way mark in the book, but Javascript is already demystified and simplified for me. In fact, I feel so confident now that I am tempted to not finish the book (LOL). Such is the amount of confidence and understanding of Javascript that I have obtained already. If I could give 6 stars to any book, this would be it. Despite starting my programming/coding journey from C#, I have come to appreciate why many experienced programmers recommend that newbies (or noobs) start learning from Javascript. The language may not be a proper OOP (like C++, Java or C#) but this book has made me see why an aspiring programmer should invest time learning Javascript first. It would be easier to grow a thick skin and clear head for other languages. And although I am picking up some lax syntaxing habits from Javascript that could embarrass me later in C# (which is a strongly typed, no nonsense language), I am happy that I last month I decided to paus my coding journey in order to grasp Javascript first. In short, this book (being one of three that bought on Javascript) is way more valuable than what I paid for it. Anyway, I have always suspected that some authors of programming books while being good programmers are often awful teachers or just people who would rather make programming seem like rocket science or something for an exclusive bunch of people. Kudos to these authors: You ROCK. I will probably buy anything else that you publish henceforth, with the expectation that you'd keep up the good work.

Recomiendo este libro para aprender de una manera entretenida y divertida los fundamentos de JavaScript