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  • You Don't Know JS Yet: Get Started

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

by Kyle Simpson (Author), Simon St.Laurent (Editor), Brian Holt (Foreword)
4.6 out of 5 stars (318)
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It seems like there's never been as much widespread desire before for a better way to deeply learn the fundamentals of JavaScript. But with a million blogs, books, and videos out there, just where do you START? Look no further!The worldwide best selling "You Don't Know JS" book series is back for a 2nd edition: "You Don't Know JS Yet". All 6 books are brand new, rewritten to cover all sides of JS for 2020 and beyond."Get Started" prepares you for the journey ahead, first surveying the language then detailing how the rest of the You Don't Know JS Yet book series guides you to knowing JS more deeply.
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  1. Book 1 of 3
    You Don't Know JS Yet
  2. Print length
    143 pages
  3. Language
    English
  4. Publication date
    January 28, 2020
  5. Dimensions
    6 x 0.33 x 9 inches
  6. ISBN-10
    8602477422
  7. ISBN-13
    979-8602477429
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Editorial Reviews

From the Back Cover

The worldwide best selling You Don't Know JS book series is back for a 2nd edition: You Don't Know JS Yet. All 6 books are brand new, rewritten to cover all sides of JS for 2020 and beyond. You'll still get in-depth coverage of the core language, applied in useful code organization patterns for your programs. And of course, through Kyle's unique perspective and conversational tone, explore passionate, reasoned debate of the most common questions developers face.

Get Started, the first book in the new edition series, is where to start your journey of knowing JS more deeply. This book surveys the language in multiple layers of detail, laying out a roadmap with the other books as guides for your learning and growth. For any developer hoping to move from early JS experience to a deeper level, here is your first step to get started.

In Get Started, you'll explore:
  • How the JS language evolves, how JS programs actually work, and busting of common myths
  • The building blocks of JS: values, functions, and more
  • The roots and pillars of JS: types, closure, and prototypes

About the Author

Kyle Simpson is an evangelist of the Open Web, passionate about all things JavaScript. He's an author, trainer, speaker, and OSS contributor.

Product details

  • ASIN ‏ : ‎ B084DFZ6GW
  • Publisher ‏ : ‎ Independently published
  • Publication date ‏ : ‎ January 28, 2020
  • Language ‏ : ‎ English
  • Print length ‏ : ‎ 143 pages
  • ISBN-10 ‏ : ‎ 8602477422
  • ISBN-13 ‏ : ‎ 979-8602477429
  • Item Weight ‏ : ‎ 7.1 ounces
  • Dimensions ‏ : ‎ 6 x 0.33 x 9 inches
  • Book 1 of 3 ‏ : ‎ You Don't Know JS Yet
  • Best Sellers Rank: #607,770 in Books (See Top 100 in Books)
  • Customer Reviews:
    4.6 out of 5 stars (318)

About the author

Follow authors to get new release updates, plus improved recommendations.
Kyle Simpson

Kyle Simpson

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Kyle Simpson is a web-oriented software engineer, widely acclaimed for his "You Don't Know JS" book series and nearly 1M hours viewed of his online courses. Kyle's superpower is asking better questions, who deeply believes in maximally using the minimally-necessary tools for any task. As a "human-centric technologist", he's passionate about bringing humans and technology together, evolving engineering organizations towards solving the right problems, in simpler ways. Kyle will always fight for the people behind the pixels.

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Top reviews from the United States

  • Brian R.
    5.0 out of 5 stars YDKJS: The Most Informative Books for Advancing JavaScript Mastery Beyond Basic Syntax Understanding
    Reviewed in the United States on September 13, 2024
    Format: PaperbackVerified Purchase
    ### My credentials
    I 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 others
    One 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 me
    Given 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
    3 people found this helpful
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  • Robert Hieger
    5.0 out of 5 stars Beyond Academia
    Reviewed in the United States on June 7, 2024
    Format: KindleVerified Purchase
    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.
    2 people found this helpful
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  • tamer
    4.0 out of 5 stars Weak paper glue
    Reviewed in the United States on November 10, 2020
    Format: PaperbackVerified Purchase
    Weak paper glue
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    tamer
    4.0 out of 5 stars
    Weak paper glue

    Reviewed in the United States on November 10, 2020
    Weak paper glue
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    7 people found this helpful
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  • Jakob Endrestad Kielland
    5.0 out of 5 stars Exactly what I wanted
    Reviewed in the United States on April 24, 2023
    Format: KindleVerified Purchase
    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.
    2 people found this helpful
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  • Sergio Rosales
    5.0 out of 5 stars Book for professional developers
    Reviewed in the United States on September 12, 2023
    Format: KindleVerified Purchase
    Very Good book. Thanks Kyle. I recommend if you are a serious JavaScript developer and want to undertand how JavaScript works
    Helpful
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  • Rabi Abraham
    5.0 out of 5 stars A paean to You Don't Know JS Yet
    Reviewed in the United States on May 21, 2020
    Format: KindleVerified Purchase
    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!
    4 people found this helpful
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  • OhhDenny Services, LLC
    5.0 out of 5 stars Refreshing Perspective on JS!
    Reviewed in the United States on March 16, 2020
    Format: PaperbackVerified Purchase
    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.
    10 people found this helpful
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  • Lily Rojo
    5.0 out of 5 stars JS at it’s best!
    Reviewed in the United States on April 12, 2020
    Format: Kindle
    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 the
    second Book "Scope & Closures".

    Definitely, this is the type of Book any developer wants to find to be into to the world of JavaScript
    2 people found this helpful
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Top reviews from other countries

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  • Sara
    2.0 out of 5 stars Arrivé abimé
    Reviewed in France on June 13, 2024
    Format: PaperbackVerified Purchase
    Arrivé abimé, c'est un cadeau pas génial pour offrir du coup !
    Customer image
    Sara
    2.0 out of 5 stars
    Arrivé abimé

    Reviewed in France on June 13, 2024
    Arrivé abimé, c'est un cadeau pas génial pour offrir du coup !
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    Report
  • ALEXANDRE
    5.0 out of 5 stars Very good!
    Reviewed in Brazil on February 13, 2022
    Format: KindleVerified Purchase
    This book is addressed for JS beginners like me. It showed me tons of very important details related to fundamentals and essential technical concepts which is crucial for our base.
    I really recommend this book for others who wants to learn JS with a deep and full understanding if you are willing to read all 6 books from Kyle.
    Report
  • Joselu
    5.0 out of 5 stars Una joya
    Reviewed in Spain on October 28, 2022
    Format: KindleVerified Purchase
    Todos los libros de esta serie son oro puro. Entra en las tripas de JS con explicaciones, a veces complejas, pero muy completas. Muy interesante para quien quiera aprender JS de forma inmersiva. Eso sí, aproximarse a estos libros una vez adquirida cierta experiencia con el lenguaje.
    Report
  • Philippe STRAUSS
    5.0 out of 5 stars Great book!
    Reviewed in Germany on June 18, 2024
    Format: PaperbackVerified Purchase
    Exactly what I needed to start with javascript, having a bit of programming background.
    Report
  • Someone
    5.0 out of 5 stars Only JavaScript book series I recommend
    Reviewed in Canada on March 25, 2021
    Format: KindleVerified Purchase
    As an adjunct instructor for several colleges, I teach web development, and this is the only book series I recommend for students.

    Now that the Kindle versions of 1.0 are no longer available, I highly recommend you purchase the hardcover versions of v1.0 (while they last) until the all the electronic v2.0 versions have been published.
    Report
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