You're reading from Professional JavaScript for Web Developers Discover an easy-to-learn guide to upgrade your JavaScript skills

Product type Paperback

Published in Nov 2019

Publisher Wiley

ISBN-13 9781119366447

Length 1144 pages

Edition 4th Edition

Languages

JavaScript

Tools

Combine

Concepts

Web Programming

Author (1):

Matt Frisbie

View More author details

Table of Contents (37) Chapters

COVER FREE CHAPTER

FOREWORD

INTRODUCTION

1 What Is JavaScript?

2 JavaScript in HTML

3 Language Basics

4 Variables, Scope, and Memory

5 Basic Reference Types

6 Collection Reference Types

7 Iterators and Generators

8 Objects, Classes, and Object-Oriented Programming

9 Proxies and Reflect

10 Functions

11 Promises and Async Functions

12 The Browser Object Model

13 Client Detection

14 The Document Object Model

15 DOM Extensions

16 DOM Levels 2 and 3

17 Events

18 Animation and Graphics with Canvas

19 Scripting Forms

20 JavaScript APIs

21 Error Handling and Debugging

22 XML in JavaScript

23 JSON

24 Network Requests and Remote Resources

25 Client-Side Storage

26 Modules

27 Workers

28 Best Practices

A ES2018 and ES2019

B Strict Mode

C JavaScript Libraries and Frameworks

D JavaScript Tools

INDEX

END USER LICENSE AGREEMENT

STREAMS API

The Streams API is the answer to a simple but fundamental question: How can a web application consume information in sequential chunks rather than in bulk? This capability is massively useful in two main ways:

A block of data may not be available all at once. A perfect example of this is a response to a network request. Network payloads are delivered as a sequence of packets, and stream processing can allow an application to use network-delivered data as it becomes available rather than waiting for the full payload to finish loading.
A block of data can be processed in small portions. Video processing, data decompression, image decoding, and JSON parsing are all examples of computation that is localized to a portion of a data block and does not require it to be in memory all at once.

The “Network Requests and Remote Resources” chapter covers how the Streams API is involved with fetch(), but the Streams API is totally generalizable. JavaScript libraries that implement...