You-Dont-Know-JS （你不知道的JavaScript）

# You Don't Know JS Yet (book series) - 2nd Edition

This is a series of books diving deep into the core mechanisms of the JavaScript language. This is the **second edition** of the book series:

<a href="https://leanpub.com/ydkjsy-get-started"><img src="get-started/images/cover.png" width="75"></a>&nbsp;&nbsp;
<a href="https://leanpub.com/ydkjsy-scope-closures"><img src="scope-closures/images/cover.png" width="75"></a>&nbsp;&nbsp;
<a href="https://leanpub.com/ydkjsy-unbooks"><img src="unbooks-cover.png" width="75"></a>

**To read more about the motivations and perspective behind this book series, check out the [Preface](preface.md).**

If you're looking for the previous **first edition** books, [they can be found here](https://github.com/getify/You-Dont-Know-JS/blob/1st-ed/README.md).

## Titles

I recommend reading the **second edition** books in this order:

* [Get Started](get-started/README.md) | [Buy on Leanpub](https://leanpub.com/ydkjsy-get-started) | [Buy on Amazon](https://www.amazon.com/dp/B084BNMN7T)
* [Scope & Closures](scope-closures/README.md) | [Buy on Leanpub](https://leanpub.com/ydkjsy-scope-closures) | [Buy on Amazon](https://www.amazon.com/dp/B08634PZ3N)
* "The Unbooks" (ebook) | [Buy on Leanpub](https://leanpub.com/ydkjsy-unbooks) | [Buy on Amazon](https://www.amazon.com/dp/B0F7H1DN5S)
    - [Objects & Classes](objects-classes/README.md) (draft stable)
    - [Types & Grammar](types-grammar/README.md) (rough draft)
    - ~~Sync & Async (canceled)~~
    - ~~ES.Next & Beyond (canceled)~~

If you're looking for the previous **first edition** books, [they can be found here](https://github.com/getify/You-Dont-Know-JS/blob/1st-ed/README.md).

## Publishing

As always, you'll be able to read these books online here entirely for free.

This edition of the books is being self-published through [GetiPub](https://geti.pub) publishing. The published books will be made available for sale through normal book retail sources.

If you'd like to contribute financially towards the effort (or any of my other OSS efforts) aside from purchasing the published books, please consider these options:

* [Github Sponsorship](https://github.com/users/getify/sponsorship)
* [Patreon](https://www.patreon.com/getify)
* [Paypal](https://www.paypal.me/getify)

## Contributions

This book series is now complete, and is **not open to further contributions**.

Thank you to those who've been part of the 11 years journey of this book series.

## Thank You To These [Wonderful Sponsors](https://github.com/sponsors/getify)

[![Coddy Logo](https://github.com/getify/You-Dont-Know-JS/blob/2nd-ed/external-logos/coddy_logo.png)](https://coddy.tech/?utm_source=github&utm_medium=sponsorship&utm_campaign=ydkjs)

A big thanks to [Coddy](https://coddy.tech/?utm_source=github&utm_medium=sponsorship&utm_campaign=ydkjs), our latest [Project Champion](https://github.com/sponsors/getify) sponsor!

[Coddy is a fantastic resource](https://github.com/coddytech) to learn coding for free