Exploring ES2016 and ES2017
Exploring ES2016 and ES2017
About the Book
- Complete contents of this book: http://exploringjs.com/es2016-es2017/
- Homepage with various resources: http://exploringjs.com/es2016-es2017.html
About the Author
Bundles that include this book
Table of Contents
-
-
What you need to know about this book
- Support
- About the author
-
What you need to know about this book
-
I Background
-
1. The TC39 process for ECMAScript features
- 1.1 Who designs ECMAScript?
-
1.2 How is ECMAScript designed?
- 1.2.1 Problem: ECMAScript 2015 (ES6) was too large a release
- 1.2.2 Solution: the TC39 process
- 1.3 Don’t call them ECMAScript 20xx features
- 1.4 Further reading
-
2. FAQ: ES2016 and ES2017
- 2.1 Isn’t ECMAScript 2016 too small?
-
1. The TC39 process for ECMAScript features
-
II ECMAScript 2016
-
3.
Array.prototype.includes- 3.1 Overview
-
3.2 The Array method
includes - 3.3 Frequently asked questions
- 3.4 Further reading
-
4. Exponentiation operator (
**)- 4.1 Overview
- 4.2 An infix operator for exponentiation
- 4.3 Examples
- 4.4 Precedence
- 4.5 Further reading
-
3.
-
III ECMAScript 2017
-
5. Async functions
-
5.1 Overview
- 5.1.1 Variants
- 5.1.2 Async functions always return Promises
-
5.1.3 Handling results and errors of asynchronous computations via
await
-
5.2 Understanding async functions
- 5.2.1 Writing asynchronous code via generators
- 5.2.2 Writing asynchronous code via async functions
- 5.2.3 Async functions are started synchronously, settled asynchronously
- 5.2.4 Returned Promises are not wrapped
-
5.3 Tips for using
await-
5.3.1 Don’t forget
await -
5.3.2 You don’t need
awaitif you “fire and forget” -
5.3.3
awaitis sequential,Promise.all()is parallel
-
5.3.1 Don’t forget
-
5.4 Async functions and callbacks
-
5.4.1
Array.prototype.map() -
5.4.2
Array.prototype.forEach()
-
5.4.1
-
5.5 Tips for using async functions
- 5.5.1 Know your Promises
- 5.5.2 Immediately Invoked Async Function Expressions
- 5.5.3 Unit testing with async functions
- 5.5.4 Don’t worry about unhandled rejections
- 5.6 Further reading
-
5.1 Overview
-
6. Shared memory and atomics
-
6.1 Parallelism vs. concurrency
- 6.1.1 Models of parallelism
-
6.2 A history of JS parallelism
-
6.2.1 The next step:
SharedArrayBuffer
-
6.2.1 The next step:
-
6.3 Shared Array Buffers
- 6.3.1 Creating and sending a Shared Array Buffer
- 6.3.2 Receiving a Shared Array Buffer
-
6.4 Atomics: safely accessing shared data
- 6.4.1 Problem: Optimizations make code unpredictable across workers
- 6.4.2 Solution: atomics
- 6.4.3 Problem: torn values
-
6.5 Shared Array Buffers in use
- 6.5.1 Shared Array Buffers and the run-to-completion semantics of JavaScript
- 6.5.2 Shared Array Buffers and asm.js and WebAssembly
- 6.5.3 Sharing data other than integers
- 6.5.4 How much faster is code that uses Shared Array Buffers?
-
6.6 Example
- 6.6.1 Using a shared lock
- 6.6.2 Implementing a shared lock
- 6.6.3 Conclusion for the example
-
6.7 The API for shared memory and atomics
-
6.7.1
SharedArrayBuffer -
6.7.2
Atomics
-
6.7.1
-
6.8 FAQ
- 6.8.1 What browsers support Shared Array Buffers?
- 6.9 Further reading
-
6.1 Parallelism vs. concurrency
-
7.
Object.entries()andObject.values()-
7.1 Overview
-
7.1.1
Object.entries() -
7.1.2
Object.values()
-
7.1.1
-
7.2
Object.entries()-
7.2.1 Setting up Maps via
Object.entries() -
7.2.2 FAQ:
Object.entries()
-
7.2.1 Setting up Maps via
-
7.3
Object.values()
-
7.1 Overview
-
8. New string methods:
padStartandpadEnd- 8.1 Overview
- 8.2 Why pad strings?
-
8.3
String.prototype.padStart(maxLength, fillString=' ')-
8.3.1 A simple implementation of
padStart()
-
8.3.1 A simple implementation of
-
8.4
String.prototype.padEnd(maxLength, fillString=' ') -
8.5 FAQ:
padStartandpadEnd-
8.5.1 Why aren’t the padding methods called
padLeftandpadRight?
-
8.5.1 Why aren’t the padding methods called
-
9.
Object.getOwnPropertyDescriptors()- 9.1 Overview
-
9.2
Object.getOwnPropertyDescriptors() -
9.3 Use cases for
Object.getOwnPropertyDescriptors()- 9.3.1 Use case: copying properties into an object
- 9.3.2 Use case: cloning objects
- 9.3.3 Use case: cross-platform object literals with arbitrary prototypes
-
9.4 Pitfall: copying methods that use
super
-
10. Trailing commas in function parameter lists and calls
- 10.1 Overview
- 10.2 Trailing commas in object literals and Array literals
- 10.3 Feature: allow trailing commas in parameter definitions and function calls
-
5. Async functions
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$10,898,062writing, 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
Functional event-driven architecture: Powered by Scala 3
Gabriel VolpeExplore the event-driven architecture (EDA) in a purely functional way, mainly powered by Fs2 streams in Scala 3!
Leverage your functional programming skills by designing and writing stateless microservices that scale, powered by stateful message brokers.
- #2
Practical FP in Scala: A hands-on approach
Gabriel VolpeA practical book aimed for those familiar with functional programming in Scala who are yet not confident about architecting an application from scratch.
Together, we will develop a purely functional application using the best libraries in the Cats ecosystem, while learning about design patterns and best practices.
- #3
入門 日本語自然言語処理
Masato Hagiwara and Paul O'Leary McCann日本語テキストを処理したい全てのプログラマ・エンジニアの方へ。分かち書きなどの基本から、自然言語生成などの最新の話題までをカバー。動かして学べるコードや、参照文献も付いています。言語学や機械学習の知識が無くても問題ありません。
- #4
Book of Monads
Alejandro Serrano MenaIn functional programming, at the heart of input/output, failure, state, logic, and much more, lies a powerful abstraction called monad. This book provides a journey from the very first concepts, to the myriad of monads available to programmers, down to the categorical foundations.
- #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
Visualise, document and explore your software architecture
Simon BrownA short guide to visualising, documenting and exploring your software architecture.
- #8
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
- #9
Introduction to Japanese Natural Language Processing
Masato Hagiwara and Paul O'Leary McCannA thorough guide for programmers working with Japanese text, covering fundamental issues like tokenization and recent research topics like generating natural language texts. Working examples are accompanied by extensive reference to allow problem solving even without a background in Japanese or Machine Learning.
- #10
Cloud Strategy
Gregor Hohpe“Strategy is the difference between making a wish and making it come true.” A successful migration to the cloud can transform your organization, but it shouldn’t be driven by wishes. This book tells you how to develop a sound strategy guided by frameworks and decision models without being overly abstract nor getting lost in product details.
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
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... - #3
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... - #4
All the Books of The Medical Futurist
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy, digital health investments and how technology giants such as Amazon... - #6
Abandon Your Job - Leaving the Rat Race with Python
8 Books
Now, get all the great Python and Freelancing books from finxter.com in one single bundle!Coffee Break Python - All Python BasicsCoffee Break Python Workbook - Practice the basics of PythonCoffee Break Python Mastery Workouts - Practice advanced Python conceptsCoffee Break Python Slicing - All about SlicingCoffee Break Python NumPy - Get started... - #8
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... - #9
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...
