Quick JavaScript

Are you an experienced programmer who wants to get started quickly in JavaScript and the HTML DOM? This is your book. Do you need encyclopedic knowledge of JavaScript and/or the HTML DOM? This book is not for you. Are you a novice who wants to learn to program? This book is not for you. In fact, this language is not for you. Get a good Python book. This book will get you programming in JavaScript as quickly as possible. In addition, it will provide you with a basic understanding of the Document Object Model, the massive data structure used to represent web pages. With these tools, you will be able to build interactive web pages. If you program in C++ or Java, there are parts of the book you can skip over because the JavaScript statements are exactly the same. These parts are clearly marked. JavaScript is the language—the only language—used by browsers. To create interactive web pages, you need to know both JavaScript and the DOM. This book will get you started. Cover Half Title Title Page Copyright Page Dedication Table of Contents Author Preface Versions of JavaScript Chapter 1: Introduction 1.1 Hello, World! 1.2 JavaScript in the Browser 1.3 Browser Consoles 1.4 Running JavaScript 1.5 Getting Input 1.6 Producing Output Chapter 2: The Bare Minimum 2.1 Comments 2.2 Data Types 2.2.1 Primitives 2.2.2 User-Defined Objects 2.2.3 Built-In Object Types 2.2.4 Arrays 2.2.5 Sets 2.2.6 Maps 2.2.7 Dates 2.2.8 Regular Expressions 2.3 Identifiers 2.4 let and const 2.5 var 2.6 Operators 2.7 Equality and Identity 2.8 Conversions 2.9 Statements 2.9.1 Semicolons 2.9.2 Declarations 2.9.3 Function Definitions 2.9.4 Familiar Statements 2.9.4.1 Assignment Statements 2.9.4.2 Expressions 2.9.4.3 Compound Statements 2.9.4.4 If Statements 2.9.4.5 While Loops 2.9.4.6 Do-While Loops 2.9.4.7 Traditional For Loops 2.9.4.8 Scope in Loops 2.9.4.9 Switch Statements 2.9.4.10 Labeled Statements 2.9.4.11 Break Statements 2.9.4.12 Continue Statements 2.9.4.13 Return Statements 2.9.4.14 Empty Statements 2.9.5 JavaScript-Specific Statements 2.9.5.1 For/of 2.9.5.2 For/in 2.9.5.3 Throw 2.9.5.4 Try-catch-finally 2.9.5.5 The with Statement 2.10 Example: Prime Numbers 2.11 Testing 2.11.1 The Mocha Test Framework 2.11.2 Testing with Chai 2.11.3 Testing Example Chapter 3: In More Detail 3.1 Strict Mode 3.2 Identifiers 3.3 Destructuring 3.4 Data Types 3.4.1 Numbers 3.4.2 Strings 3.4.3 Booleans 3.4.4 Symbols 3.4.5 Arrays 3.4.6 Sparse Arrays 3.4.7 Sets 3.4.8 Maps 3.4.9 WeakMaps 3.4.10 Promises 3.4.11 Conversions 3.5 Math 3.6 Reserved Words 3.7 Good Operators 3.8 Operator Notes 3.9 Bad Operators 3.10 Functions 3.10.1 Defining Functions 3.10.2 Parameters and Arguments 3.10.3 Functions Are Data 3.10.4 Functions Are Objects 3.10.5 Function Methods 3.10.6 Closures 3.10.7 Generators 3.10.8 Iterators 3.11 Objects 3.11.1 Definition of Objects 3.11.2 Creating Objects 3.11.3 Copying Objects 3.11.4 Methods 3.11.5 Optional Chaining 3.11.6 This 3.11.7 Higher-Order Functions 3.11.8 Prototypes 3.11.9 Descriptors 3.11.10 Classes and Inheritance 3.11.10.1 Classes 3.11.10.2 Inheritance 3.11.10.3 Overriding Methods and Fields 3.11.10.4 Class Prototypes 3.12 Transpilers and Polyfills 3.13 JSON Chapter 4: Client-Side JavaScript 4.1 Essential HTML 4.2 Adding JavaScript to HTML 4.3 DOM Overview 4.4 Graphical User Interfaces 4.4.1 Events 4.4.2 Widgets 4.4.3 Buttons 4.4.4 Finding Widgets 4.4.5 Text Fields 4.4.6 Buttons and Forms 4.4.7 Form Verification 4.4.8 Form Submission 4.4.8.1 Get Requests 4.4.8.2 Post Requests 4.4.8.3 Other Requests 4.4.9 Additional Text Widgets 4.4.10 Other Input Widgets 4.4.11 Events 4.4.12 Bubbling 4.5 Using the DOM 4.5.1 The Window Object 4.5.1.1 Window Properties 4.5.1.2 Window Methods 4.5.1.3 Window Example 4.5.2 The Document Object 4.5.2.1 Document Properties 4.5.2.2 Finding Nodes 4.5.2.3 Creating Nodes 4.5.3 Node Objects 4.5.3.1 Node Properties 4.5.3.2 Node Methods 4.5.4 Elements 4.5.4.1 Element Properties 4.5.4.2 Element Methods 4.5.5 CharacterData 4.5.6 Example: ShowTree Afterword Appendix A: Array Methods Appendix B: Higher-Order Methods Appendix C: String Methods Appendix D: Regular Expressions References Index "This book will get you programming in JavaScript as quickly as possible. It is written for those with basic programming knowledge, and is for those who are looking for a quick access guide over an encyclopedic introduction, JavaScript is the language - the only language - used by browsers. To create interactive web pages, you need to know both JavaScript and the DOM. Alongside JavaScript, this book will provide you with a basic understanding of the Document Object Model, the massive data structure used to represent web pages. With these tools, you will be able to build interactive web pages. Whether you're looking for a crash course in JavaScript for career progression or supplementary material for a programming course, this book will enable you to quickly add JavaScript to your programming toolkit"-- Provided by publisher A very concise guide to a popular programming language, so there is a healthy demand for content which teaches who to utilize JavaScript. The book's broad coverage (paired with being compact) makes it more appealing than competitor's books currently on the market. Compared to online material, it has the benefit of material being presented in one coherent sequence. Author utilizes many years of teaching experience to communicate an effective way for teaching JavaScript quickly