Rediscovering JavaScript : master ES6, ES7, and ES8 / Venkat Subramaniam.

Format:

Book

Author/Creator:

Subramaniam, Venkat, author.

Series:

Pragmatic programmers.

Pragmatic programmers

Language:

English

Subjects (All):

JavaScript (Computer program language).

Physical Description:

1 online resource (280 pages).

Edition:

1st edition

Place of Publication:

Raleigh, North Carolina : Pragmatic Bookshelf, [2018]

System Details:

text file

Summary:

JavaScript is no longer to be feared or loathed - the world's most popular and ubiquitous language has evolved into a respectable language. Whether you're writing frontend applications or server side code, the phenomenal features from ES6 and beyond - like the rest operator, generators, destructuring, object literals, arrow functions, modern classes, promises, async, and metaprogramming capabilities - will get you excited and eager to program with JavaScript. You've found the right book to get started quickly and dive deep into the essence of modern JavaScript. Learn practical tips to apply the elegant parts of the language and the gotchas to avoid. JavaScript is a black swan that no one, including the author of the language, thought would become a popular and ubiquitous language. Not long ago, it was the most hated and feared language you could use to program the web. JavaScript ES6 and beyond has gone through a significant makeover. Troublesome features have been replaced with better, elegant, more reliable alternatives. This book includes many practical examples and exercises to help you learn in depth. It will not bore you with idiosyncrasies and arcane details intended for bad interview questions. Instead, it takes you into key features that you can readily use in your day-to-day projects. Whether you program the frontend or the server side, you can now write concise, elegant, and expressive JavaScript with newer features like default parameters, template literals, rest and spread operators, destructuring, arrow functions, and generators. Take it up a notch with features like infinite series, promises, async, and metaprogramming to create flexible, powerful, and extensible libraries. While the evolved features of the language will draw you in, the hundreds of examples in this book will pin the concepts down, for you to use on your projects. Take command of modern JavaScript and unlock your potential to create powerful applications. What You Need: To try out the examples in the book you will need a computer with Node.js, a text editor, and a browser like Chrome installed in it.

Contents:

Cover

Table of Contents

Acknowledgments

Introduction

How to Run Modern JavaScript

What's in This Book?

Who Is This Book For?

Online Resources

Part I-The Safe Alternatives

1. JavaScript Gotchas

Be Careful Where You Break Lines

Use === Instead of ==

Declare Before Use

Stay One Step Ahead

Wrapping Up

2. Variables and Constants

Out with var

In with let

Perils of Mutability

const

Safer Code with let and const

Prefer const over let

3. Working with Function Arguments

The Power and Perils of arguments

Using the Rest Parameter

The Spread Operator

Defining Default Values for Parameters

Part II-Nice Additions

4. Iterators and Symbols

The Convenience of Enhanced for

Symbol-A New Primitive Type

Using Custom Iterators and Generators

Creating Infinite Iterators

5. Arrow Functions and Functional Style

From Anonymous to Arrow Functions

Anonymous vs. Arrow Functions

Limitations of Arrow Functions

When to Use Arrow Functions

Arrow Functions and Functional Style

6. Literals and Destructuring

Using Template Literals

Multiline Strings

Tagged Template

Enhanced Object Literals

Destructuring

Part III-OO and Modular Code

7. Working with Classes

Creating a Class

Implementing a Constructor

Defining a Method

Defining Computed Members

Creating Properties

Defining Class Members

Class Expressions

New Built-in Classes: Set, Map, WeakSet, and WeakMap

8. Using Inheritance

Understanding Prototypal Inheritance

Inheriting from a Class

Managing Instance Types with species

9. Using Modules

Creating a Module

Exporting from a Module

Importing from a Module

Part IV-Going Meta.

10. Keeping Your Promises

No Thanks to Callback Hell

Promises to the Rescue

Ways to Create a Promise

Chaining Promises

Working with Multiple Promises

Async and Await

11. Exploring Metaprogramming

The Power and Perils of Metaprogramming

Dynamic Access

Member Injection

12. Deep Dive into Metaprogramming

Purpose of Reflect

Metaprogramming with Proxy

Synthesizing Members with Proxy

Using Decorators

A1. Answers to Exercises

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

Chapter 10

Chapter 11

Chapter 12

A2. Web Resources

Bibliography

Index

- SYMBOLS -

- A -

- B -

- C -

- D -

- E -

- F -

- G -

- H -

- I -

- J -

- L -

- M -

- N -

- O -

- P -

- Q -

- R -

- S -

- T -

- U -

- V -

- W -

- Y -.

Notes:

Description based on print version record.

"Version: P1.0 (June 2018)."

Includes bibliographical references.

ISBN:

9781680506174

168050617X

9781680506198

1680506196

9781680506181

1680506188

OCLC:

1048573804