Leanpub The Leanpub Logo is a Registered Trademark
AccountLibraryOverviewPurchasesStoreSupport
BooksBundlesCoursesFeaturedNewslettersPodcastSupportWhy Leanpub
BooksBundlesCoursesFeaturedNewslettersPodcastSupportWhy Leanpub
Exploring ES2016 and ES2017
Exploring ES2016 and ES2017
$15.00
Minimum price
$20.00
Suggested price

    • English

    • PDF

    • EPUB

    • MOBI

    • WEB

    Exploring ES2016 and ES2017

    This book is 100% complete

    Completed on 2018-02-19

    About the Book

    About the Author

    Axel Rauschmayer
    Axel Rauschmayer

    Axel specializes in JavaScript and web development. He teaches classes for Ecmanauten, blogs at 2ality.com, holds talks and workshops at conferences and organizes the MunichJS user group.

    Axel has been writing about ECMAScript 6 since early 2011.

    Bundles that include this book

    Exploring ES6
    Exploring ES2016 and ES2017
    Exploring: ES6, ES2016/ES2017
    2 Books
    $55.00
    Suggested Price
    $39.00
    Bundle Price
    Exploring ES6
    Setting up ES6
    Exploring ES2016 and ES2017
    Exploring: ES6 plus, ES2016/ES2017
    3 Books
    $63.00
    Suggested Price
    $43.00
    Bundle Price

    Table of Contents

    •  
      • What you need to know about this book
        • Support
      • About the author
    • 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?
    • 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
    • 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 await if you “fire and forget”
          • 5.3.3 await is sequential, Promise.all() is parallel
        • 5.4 Async functions and callbacks
          • 5.4.1 Array.prototype.map()
          • 5.4.2 Array.prototype.forEach()
        • 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
      • 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
        • 6.3 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
        • 6.8 FAQ
          • 6.8.1 What browsers support Shared Array Buffers?
        • 6.9 Further reading
      • 7. Object.entries() and Object.values()
        • 7.1 Overview
          • 7.1.1 Object.entries()
          • 7.1.2 Object.values()
        • 7.2 Object.entries()
          • 7.2.1 Setting up Maps via Object.entries()
          • 7.2.2 FAQ: Object.entries()
        • 7.3 Object.values()
      • 8. New string methods: padStart and padEnd
        • 8.1 Overview
        • 8.2 Why pad strings?
        • 8.3 String.prototype.padStart(maxLength, fillString=' ')
          • 8.3.1 A simple implementation of padStart()
        • 8.4 String.prototype.padEnd(maxLength, fillString=' ')
        • 8.5 FAQ: padStart and padEnd
          • 8.5.1 Why aren’t the padding methods called padLeft and padRight?
      • 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

    Authors have earned$8,248,402writing, 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

    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

    Free Updates. Free App. 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), MOBI (for Kindle) and in the free Leanpub App (for Mac, Windows, iOS and Android). 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

    Write and Publish on Leanpub

    You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses! Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks. Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. It really is that easy.

    Learn more about writing on Leanpub

    Leanpub is copyright © 2010-2019 Ruboss Technology Corp. All rights reserved.