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ECMAScript Cookbook

You're reading from ECMAScript Cookbook Over 70 recipes to help you learn the new ECMAScript (ES6/ES8) features and solve common JavaScript problems

Product type Paperback

Published in Mar 2018

Publisher Packt

ISBN-13 9781788628174

Length 348 pages

Edition 1st Edition

Languages

JavaScript

Tools

ECMAScript

Concepts

Web Programming

Author (1):

Ross Harrison

View More author details

Table of Contents (14) Chapters

Preface

1. Building with Modules FREE CHAPTER

2. Staying Compatible with Legacy Browsers

3. Working with Promises

4. Working with async/await and Functions

5. Web Workers, Shared Memory, and Atomics

6. Plain Objects

7. Creating Classes

8. Inheritance and Composition

9. Larger Structures with Design Patterns

10. Working with Arrays

11. Working with Maps and Symbols

12. Working with Sets

13. Other Books You May Enjoy

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Enabling SharedArrayBuffers in Chrome

In early 2018, the Spectre and Meltdown vulnerabilities were discovered. In response, browser manufacturers disabled SharedArrayBuffer by default. Some of the recipes in this chapter require this feature. This recipe demonstrates how to enable them in Chrome.

Getting ready

This recipe assumes that you have an up to date version of Chrome installed.

How to do it...

Open Chrome.
Navigate to chrome://flags/.
Click I accept the risk!
Search for shared.
Select Enabled for the option Experimental enabled SharedArrayBuffer support in JavaScript.
Click RELAUNCH NOW:

How it works...

By default, shared memory is disabled in Firefox, but the options let developers activate these (potentially insecure) features without exposing normal users to them. You can read more about Meltdown and Spectre at:https://meltdownattack.com/.

You should not leave this feature enabled after you finish experimenting with it.

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Authors (1)

Harrison

Harrison

Ross Harrison discovered programming while he was an undergraduate at the University of Nebraska-Lincoln. His first programming class was a MATLAB class that was required for mechanical engineering. Despite bombing the class, he decided that it was a lot more fun than looking at CAD. He switched to computer science the next semester and never looked back. He has worked as a software engineer for over 10 years. Most of that time has been spent creating tools for digital publishers.

See other products by Harrison

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