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Modern JavaScript for the Impatient

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Modern JavaScript for the Impatient

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    ePub EPUB The open industry format known for its reflowable content and usability on supported mobile devices.

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About

Features

  • Learn the techniques you need to be highly effective with JavaScript today – and avoid legacy JavaScript development pitfalls
  • Covers the Standard Library, modern JavaScript tools, asynchronous and web programming, and much more
  • Demystifies toolchains and frameworks, two of JavaScript’s most powerful features
  • By Cay S. Horstmann, author of the international best-sellers Core Java and Core Java® SE 9 for the Impatient

Description

  • Copyright 2020
  • Dimensions: 7" x 9-1/8"
  • Pages: 352
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-650214-8
  • ISBN-13: 978-0-13-650214-2

Exploit the Power of Modern JavaScript and Avoid the Pitfalls

JavaScript was originally designed for small-scale programming in web browsers, but modern JavaScript is radically different. Nowadays, JavaScript programmers actively embrace functional, object-oriented, and asynchronous programming, while deprecating error-prone concepts from the past. Modern JavaScript for the Impatient is a complete yet concise guide to JavaScript E6 and beyond. Rather than first requiring you to learn and transition from older versions, it helps you quickly get productive with today’s far more powerful versions and rapidly move from languages such as Java, C#, C, or C++.

Bestselling programming author Cay S. Horstmann covers all you need to know, provided in small chunks organized for quick access and easy understanding. Horstmann’s practical insights and sample code help you take advantage of all that’s new, avoid common pitfalls and obsolete features, and make the most of modern JavaScript’s robust toolchains and frameworks.

  • Quickly master modern JavaScript’s implementation of fundamental programming constructs
  • Avoid legacy techniques that create unnecessary complexity and risk
  • Make the most of functional, object-oriented, and asynchronous techniques
  • Use modules to efficiently organize and run complex programs
  • Write more powerful, flexible, and concise programs with metaprogramming
  • Extend JavaScript’s power via JavaScript libraries, frameworks, and platforms
Whether you’re just getting started with JavaScript or you’re an experienced developer, this guide will help you write tomorrow’s most robust, efficient, and secure JavaScript code.

Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

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Source Code

Please visit the author's site at horstmann.com/javascript-impatient for source code and lesson slides.

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Related Article

JSON & JSON Strings

Sample Content

Online Sample Chapter

Functions and Functional Programming in JavaScript

Table of Contents

Preface xv
About the Author xxi

Chapter 1: Values and Variables 1
1.1 Running JavaScript 1
1.2 Types and the typeofOperator 5
1.3 Comments 5
1.4 Variable Declarations 6
1.5 Identifiers 7
1.6 Numbers 8
1.7 Arithmetic Operators 9
1.8 Boolean Values 12
1.9 null and undefined 12
1.10 String Literals 13
1.11 Template Literals 15
1.12 Objects 16
1.13 Object Literal Syntax 17
1.14 Arrays 18
1.15 JSON 20
1.16 Destructuring 21
1.17 Advanced Destructuring 23
Exercises 24

Chapter 2: Control Structures 27
2.1 Expressions and Statements 27
2.2 Semicolon Insertion 29
2.3 Branches 31
2.4 Boolishness 34
2.5 Comparison and Equality Testing 34
2.6 Mixed Comparisons 36
2.7 Boolean Operators 37
2.8 The switchStatement 39
2.9 while anddo Loops 40
2.10 for Loops 41
2.11 Breaking and Continuing 44
2.12 Catching Exceptions 46
Exercises 47

Chapter 3: Functions and Functional Programming 51
3.1 Declaring Functions 51
3.2 Higher-Order Functions 53
3.3 Function Literals 54
3.4 Arrow Functions 54
3.5 Functional Array Processing 56
3.6 Closures 57
3.7 Hard Objects 59
3.8 Strict Mode 61
3.9 Testing Argument Types 62
3.10 Supplying More or Fewer Arguments 63
3.11 Default Arguments 64
3.12 Rest Parameters and the Spread Operator 64
3.13 Simulating Named Arguments with Destructuring 66
3.14 Hoisting 67
3.15 Throwing Exceptions 69
3.16 Catching Exceptions 70
3.17 The finallyClause 72
Exercises 73

Chapter 4: Object-Oriented Programming 77
4.1 Methods 77
4.2 Prototypes 78
4.3 Constructors 81
4.4 The Class Syntax 83
4.5 Getters and Setters 85
4.6 Instance Fields and Private Methods 85
4.7 Static Methods and Fields 86
4.8 Subclasses 87
4.9 Overriding Methods 89
4.10 Subclass Construction 90
4.11 Class Expressions 91
4.12 The thisReference 92
Exercises 95

Chapter 5: Numbers and Dates 99
5.1 Number Literals 99
5.2 Number Formatting 100
5.3 Number Parsing 101
5.4 Number Functions and Constants 102
5.5 Mathematical Functions and Constants 103
5.6 Big Integers 105
5.7 Constructing Dates 105
5.8 Date Functions and Methods 109
5.9 Date Formatting 110
Exercises 110

Chapter 6: Strings and Regular Expressions 115
6.1 Converting between Strings and Code Point Sequences 115
6.2 Substrings 116
6.3 Other String Methods 118
6.4 Tagged Template Literals 121
6.5 Raw Template Literals 122
6.6 Regular Expressions 123
6.7 Regular Expression Literals 127
6.8 Flags 127
6.9 Regular Expressions and Unicode 129
6.10 The Methods of the RegExpClass 130
6.11 Groups 131
6.12 String Methods with Regular Expressions 133
6.13 More about Regex Replace 135
6.14 Exotic Features 136
Exercises 137

Chapter 7: Arrays and Collections 141
7.1 Constructing Arrays 141
7.2 The lengthProperty and Index Properties 143
7.3 Deleting and Adding Elements 144
7.4 Other Array Mutators 145
7.5 Producing Elements 148
7.6 Finding Elements 149
7.7 Visiting All Elements 150
7.8 Sparse Arrays 152
7.9 Reduction 153
7.10 Maps 156
7.11 Sets 158
7.12 Weak Maps and Sets 159
7.13 Typed Arrays 160
7.14 Array Buffers 163
Exercises 164

Chapter 8: Internationalization 167
8.1 The Locale Concept 167
8.2 Specifying a Locale 168
8.3 Formatting Numbers 171
8.4 Localizing Dates and Times 172
8.5 Collation 176
8.6 Other Locale-Sensitive String Methods 177
8.7 Plural Rules and Lists 178
8.8 Miscellaneous Locale Features 180
Exercises 181

Chapter 9: Asynchronous Programming 185
9.1 Concurrent Tasks in JavaScript 185
9.2 Making Promises 188
9.3 Immediately Settled Promises 191
9.4 Obtaining Promise Results 191
9.5 Promise Chaining 192
9.6 Rejection Handling 194
9.7 Executing Multiple Promises 196
9.8 Racing Multiple Promises 197
9.9 Async Functions 197
9.10 Async Return Values 199
9.11 Concurrent Await 201
9.12 Exceptions in Async Functions 202
Exercises 203

Chapter 10: Modules 209
10.1 The Module Concept 209
10.2 ECMAScript Modules 210
10.3 Default Imports 211
10.4 Named Imports 212
10.5 Dynamic Imports 213
10.6 Exports 213
10.7 Packaging Modules 217
Exercises 218

Chapter 11: Metaprogramming 221
11.1 Symbols 221
11.2 Customization with Symbol Properties 223
11.3 Property Attributes 225
11.4 Enumerating Properties 228
11.5 Testing a Single Property 229
11.6 Protecting Objects 230
11.7 Creating or Updating Objects 231
11.8 Accessing and Updating the Prototype 231
11.9 Cloning Objects 232
11.10 Function Properties 235
11.11 Binding Arguments and Invoking Methods 236
11.12 Proxies 237
11.13 The ReflectClass 240
11.14 Proxy Invariants 242
Exercises 244

Chapter 12: Iterators and Generators 249
12.1 Iterable Values 249
12.2 Implementing an Iterable 250
12.3 Closeable Iterators 252
12.4 Generators 254
12.5 Nested Yield 255
12.6 Generators as Consumers 257
12.7 Generators and Asynchronous Processing 259
12.8 Async Generators and Iterators 261
Exercises 263

Chapter 13: An Introduction to Typescript 269
13.1 Type Annotations 270
13.2 Running TypeScript 271
13.3 Type Terminology 273
13.4 Primitive Types 274
13.5 Composite Types 275
13.6 Type Inference 277
13.7 Subtypes 280
13.8 Classes 284
13.9 Structural Typing 287
13.10 Interfaces 288
13.11 Indexed Properties 290
13.12 Complex Function Parameters 291
13.13 Generic Programming 297
Exercises 305

Index 309

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