A Drip of JavaScript
A Drip of JavaScript
The Complete Collection
About the Book
Every Tuesday at 7:30 in the morning, thousands of subscribers receive the latest issue of A Drip of JavaScript. Each issue is a bite-sized look at one aspect of programming in JavaScript.
This book is the living archive of A Drip of JavaScript. It is not intended to be a "how to program" manual, or a treatise on the language. Instead, it is meant to be a book you can dip into for five minutes at a time to learn something new.
Each month this book is updated to include the latest issues of the newsletter, as well as incorporate bug fixes and content feedback. Buyers receive free updates.
Praise for A Drip of JavaScript:
Been following @joshuacc’s A Drip of Javascript for a few weeks and it’s quite good. Recommended.
– James Shore, author of The Art of Agile Development
I love waking up, checking my email and seeing a little nugget of JavaScript wisdom.
– Jason Fox
About the Author
Table of Contents
-
Preface
- Resources
- Bug Reports & Feature Requests
- Credits
- Default Parameters in JavaScript
-
Arbitrary Parameters with the
argumentsObject - Reordering Arrays with Array#sort
- What is an Array?
- Transforming Arrays with Array#map
- Constructors in JavaScript
-
Dealing with the Dangers of
thisin Constructors - What are Prototype Properties and Methods?
- Using Dispatch Tables to Avoid Conditionals in JavaScript
- Testing Array Contents with Array#some
- Creating Chainable Interfaces in JavaScript
- Using Duck Typing to Avoid Conditionals in JavaScript
- Function functions
-
Using JavaScript’s
toStringMethod -
Invoking Functions With
callandapply -
Using
applyto Emulate JavaScript’s Upcoming Spread Operator - Boiling Down Arrays with Array#reduce
- Making Deep Property Access Safe in JavaScript
- Testing Array Contents with Array#every
- The Difference Between Boolean Objects and Boolean Primitives
- An Introduction to Writing Your Own JavaScript Compatibility Shims
-
Redefining
undefined -
The Uses of
invshasOwnProperty - An Introduction to IIFEs - Immediately Invoked Function Expressions
- Variable and Function Hoisting in JavaScript
- Creating Bound Functions with Function#bind
- Partial Application with Function#bind
- Determining if a String Contains a Substring
- Equals Equals Null in JavaScript
- Creating Unwritable Properties with Object.defineProperty
- JavaScript’s void Operator
- Filtering Arrays with Array#filter
- Using JavaScript’s Array Methods on Strings
- Numbers and JavaScript’s Dot Notation
- Finding Array Elements with Array#indexOf
- The Problem with Testing for NaN in JavaScript
- Understanding the Module Pattern in JavaScript
- The Virtue of JavaScript Linting
- Emulating Block Scope in JavaScript
- Truthy and Falsy Values in JavaScript
- Object Equality in JavaScript
- Building Up Arrays with Array#concat
-
Ditching jQuery with
querySelectorAll - Storing Metadata on Arrays in JavaScript
- JavaScript’s Primitive Wrapper Objects
- Basic Inheritance with JavaScript Constructors
-
The
deleteOperator in JavaScript -
Retrieving Property Names with
Object.getOwnPropertyNamesandObject.keys -
Immutable Objects with
Object.freeze -
Sealing JavaScript Objects with
Object.seal - Preventing Object Extensions in JavaScript
- Avoiding Problems with Decimal Math in JavaScript
- Basic Inheritance with Object.create
- Creating Objects Without Prototypes
- Using ECMAScript 6 Maps
- Negating Predicate Functions in JavaScript
- Finding an Object’s Size in JavaScript
- Detecting Arrays vs. Objects in JavaScript
- Checking Date Equality in JavaScript
- The Perils of Non-Local Mutation
- Measuring JavaScript Performance with console.time
- The Problems with for…in and JavaScript Arrays
- Safely Referencing Undeclared Global Variables
- Faster Websites - Minifying Your JavaScript with Uglify
- Don’t Blow Your Stack - Recursion and Trampolines in JavaScript
- Lists of Unique Values - Using ES6 Sets in JavaScript
- Automating Your Way to Better JavaScript with Grunt
- Creating Private Properties with ES6 Symbols
- Holy Bat-Signal, Batman! Implementing the Observer Pattern in JavaScript
- Even Stricter Equality with Object.is
Other books by this author
The Leanpub 45-day 100% Happiness Guarantee
Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$10,818,894writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
Aprendiendo Git
Miguel Angel Durán GarcíaGit no es complicado... ¡Si lo entiendes! 😜
¿Sientes que sabes usarlo porque has memorizado todos los comandos que necesitas? ¡Pero no entiendes qué hace cada cosa y por qué! Así es normal que, cuando exista un problema, te cueste resolverlo.
¡Con este libro vas a entender de una vez por todas todo lo que es Git y cómo sacarle provecho!
- #2
Windows Kernel Programming, Second Edition
Pavel Yosifovich - #3
Jetpack Compose internals
Jorge CastilloJetpack Compose is the future of Android UI. Master how it works internally and become a more efficient developer with it. You'll also find it valuable if you are not an Android dev. This book provides all the details to understand how the Compose compiler & runtime work, and how to create a client library using them.
- #4
Building Virtual Machine Labs: A Hands-on Guide (Second Edition)
Tony RobinsonThe premise of this book is to provide students a hands-on, go-to resource for building a secure, customizable lab environment in order to enable their own specific pursuits.
- #5
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #6
Functional Programming Made Easier
Charles ScalfaniA Functional Programming book from beginner to advanced without skipping a single step along the way.
In my 40 years of programming, I've felt that programming books always let me down, especially Functional Programming books. So, I wrote the book I wish I had 5 years ago.
Functional Programming will never be easy, but it can be easier.
- #7
Agile Testing Condensed Thai Edition
Janet Gregory, Suthasinee Lieopairoj, Sahassa Intarit, and Prathan Dansakulcharoenkitหนังสือ Agile Testing Condensed นำเสนอภาพรวมที่กระชับ อ่านง่าย เกี่ยวกับวิธีการประสบความสำเร็จในการทดสอบซอฟต์แวร์ และสร้างวัฒนธรรมที่มุ่งเน้นการส่งมอบซอฟต์แวร์ที่มีคุณภาพในบริบทของการพัฒนา ตรวจสอบ ทดสอบ เพื่อส่งมอบผลลัพธ์จากซอฟต์แวร์ในรูปแบบของแอจไจล์ จากองค์ความรู้ และประสบการณ์กว่ายี่สิบปีของ Janet Gregory และ Lisa Crispin
- #8
Atomic Kotlin
Bruce Eckel and Svetlana IsakovaFor both beginning and experienced programmers! From the author of the multi-award-winning Thinking in C++ and Thinking in Java and a Kotlin team member comes a book that breaks concepts into small, easy-to-digest "atoms," along with exercises supported by hints and solutions directly inside IntelliJ IDEA! Full support at www.AtomicKotlin.com.
- #9
C++20
Rainer GrimmC++20 is the next big C++ standard after C++11. As C++11 did it, C++20 changes the way we program modern C++. This change is, in particular, due to the big four of C++20: ranges, coroutines, concepts, and modules.
- #10
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
Top Bundles
- #1
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #2
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #3
Modern C++ Collection
3 Books
Get All about Modern C++C++ Standard Library, including C++20Concurrency with Modern C++, including C++20C++20Each book has about 200 complete code examples. Updates are included. When I update one of the books, you immediately get the updated bundle. You can expect significant updates to each new C++ standard (C++23, C++26, .. ) and also... - #4
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming... - #6
10 Books Bundle - A New Career in Tech 🚀
10 Books
Do you want to create yourself a new and profitable skillset - in one year or less? Do you want to position yourself on the right side of change finally? Do you want to work from home and set your own work schedule while choosing fun and interesting coding projects? Software developers and freelance developersearn six figuresin the US, according... - #8
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible...
