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

BROWSER ERROR REPORTING

All of the major desktop web browsers—Internet Explorer/Edge, Firefox, Safari, Chrome, and Opera—have some way to report JavaScript errors to the user. By default, all browsers hide this information, both because it's of little use to anyone but the developer, and because it's the nature of web pages to throw errors during normal operation.

Desktop Consoles

All modern desktop web browsers expose errors through their web console. These errors can be revealed in the developer tools console. In all the previously mentioned browsers, they share a common path to accessing the web console. Perhaps the easiest way to view errors is to right-click on the web page, select Inspect or Inspect Element, and click the Console tab.

To proceed directly to the console, different operating systems and browsers support different key combinations: