You Don't Know JS Yet: Get Started Paperback – January 28, 2020

### My credentialsI think it's important to tell a little about myself to increase a reviewers confidence that my review is something they can trust. I am a software developer with more than seven years of professional experience. I have architected and programmed custom business applications in a variety of situations. For example, one application was used internally by an enterprise level organization and had to closely adhere to strict government policies. Another application was one that is highly public facing with millions of visits and interactions every month. I used JavaScript for all of these projects, and If I didn't have an above average understanding of it, I would not have been able to successfully develop said applications.---### How the book series will help othersOne caveat to this book is that you need to know the absolute basics about programming concepts and JavaScript (i.e, a basic understanding of its syntax, creating, read, edit, and delete variable, knowledge of primitive and non-primitive JS data-types, and so on). However, if you do have those fundamentals down, then this book is certainly the logical next step in advancing your JavaScript knowledge level. A thorough understanding of this book series will take you a long way in the web application development industry. Simply put, It's a book for any web based application developer who knows basic JavaScript and wants to advance their fundamentals to a more advanced level. It's also a great book to prepare for interviews. I have asked interview questions that can be answered from this book. I didn't take the question directly from the book. However, I consider certain JS concepts to be very important when building applications. Therefor, beyond the basic JavaScript fundamentals (like syntax), YDKJS book series covers every major concept that you will need to build and debug any application that uses JavaScript.---### How the book series helped meGiven that I mentor a significant number of other developers in a professional software development environment, it is paramount that I understand JavaScript to a fairly advanced level. That said, I don't need to know *everything*. For example, I don't need to know how C++ code works in the various browser engines (i.e., V8, SpiderMonkey, and JavaScriptCore) or the various JS runtimes (i.e., the Browser, Node, Bun) in which said engines can run in. However, I do need to know enough to properly debug applications within an acceptable time frame and produce a highly optimized solution. At a minimum, I should know how to find information that will lead me to the correct place to find the next solution and so on until I have acquired enough knowledge to solve the problem. It is my opinion that YDKJS will help app developers reach

Having gone through an undergraduate degree with a customized major aimed at full stack web development and design, along with the companion technologies of mobile applications, and a Masters Degree in Integrated Digital Media, what stands out more than anything in that experience is the theoretical and cursory coverage of fundamental topics.Additionally, there was often a cavalier disdain and dismissal of the necessity for study of fundamental technologies that undergird the ecosystem of full stack engineering and design. Personally, this left me feeling adrift often without a map to find the missing pieces.I continue doggedly to doggedly fill in gaps in my skill set working through many tutorials resulting in mini-apps, but again with the slight misgivings that it might be blind flailing.In this book, Kyle Simpson, rather than setting down scriptures to be followed in blind faith, asserts a very different modus operandi—one in which critical thought holds sway, and where concepts are revealed one by one, and the critical question of “Why?” is addressed rather than accepting at face value the gospel according to the author.This approach is a breath of fresh air, and one to which I wish I had more exposure in academic surroundings.

Weak paper glue

This book turned out to be exactly what I wanted to start my deep-dive into JS. Can’t wait to read the rest of the books. Thank you Kyle, for writing a book that’s so interesting and engaging that it’s the first programming book I was motivated to finish.

Very Good book. Thanks Kyle. I recommend if you are a serious JavaScript developer and want to undertand how JavaScript works

This book series is a joy for learning JavaScript. It's succinct yet comprehensive. It gave me the big picture but did not leave out the nitty-gritty details. I can compare it to another highly-recommended book: Eloquent JavaScript. To me You Don't Know JS Yet is a hundred times better! Ultimately, eloquence enables good communication. This series has that kind of eloquence in spades.I can't wait for the revised versions of the other books in the series to come out!

I have the original series of YDKJS and I am will be buying every book of the second series. I truly appreciate Kyle's style of wring for his user. I have been working with JavaScript for over a decade and even reading this intro it brought me to deeply think about 'use strict' that I had never thought about before. I credit these series to my increase of excitement in wanting to learn JavaScript at a deeper level.

I have the first book of YDKJS, and I found it an execelent tool to get into the world of JavaScript, this book possess strong fundamentals of JavaScript, Kyle Simpson is worried about to properly explain to us it’s concepts, and then we can continue with the second book "Scopes & Closures"Kyle Simpson has a great and deep writing and explaining style the JavaScript languaje, this is the type of book to make you want to read over and over again, because explains all concepts related with JavaScript, he explains the JavaScript secrets, tricks and more.That's why I recommend to take your time to understand the first book "Get Started", read, think, do exercises then you Will be ready go to thesecond Book "Scope & Closures".Definitely, this is the type of Book any developer wants to find to be into to the world of JavaScript