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

EVENT FLOW

When development for the fourth generation of web browsers began (Internet Explorer 4 and Netscape Communicator 4), the browser development teams were met with an interesting question: What part of a page owns a specific event? To understand the issue, consider a series of concentric circles on a piece of paper. When you place your finger at the center, it is inside of not just one circle but all of the circles on the paper. Both development teams looked at browser events in the same way. When you click on a button, they concluded, you're clicking not just on the button but also on its container and on the page as a whole.

Event flow describes the order in which events are received on the page, and interestingly, the Internet Explorer and Netscape development teams came up with an almost exactly opposite concept of event flow. Internet Explorer would support an event bubbling flow, whereas Netscape Communicator would support an event capturing flow.