JavaScript Unlocked电子书

JavaScript Unlocked

Table of Contents

JavaScript Unlocked

Credits

About the Author

About the Reviewer

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Diving into the JavaScript Core

Make your code readable and expressive

Function argument default value

Conditional invocation

Arrow functions

Method definitions

The rest operator

The spread operator

Mastering multiline strings in JavaScript

Concatenation versus array join

Template literal

Multi-line strings via transpilers

Manipulating arrays in the ES5 way

Array methods in ES5

Array methods in ES6

Traversing an object in an elegant, reliable, safe, and fast way

Iterating the key-value object safely and fast

Enumerating an array-like object

The collections of ES6

The most effective way of declaring objects

Classical approach

Approach with the private state

Inheritance with the prototype chain

Inheriting from prototype with Object.create

Inheriting from prototype with Object.assign

Approach with ExtendClass

Classes in ES6

How to – magic methods in JavaScript

Accessors in ES6 classes

Controlling access to arbitrary properties

Summary

2. Modular Programming with JavaScript

How to get out of a mess using modular JavaScript

Modules

Cleaner global scope

Packaging code into files

Reuse

Module patterns

Augmentation

Module standards

How to use asynchronous modules in the browser

Pros and cons

How to – use synchronous modules on the server

Pros and cons

UMD

JavaScript's built-in module system

Named exports

Default export

The module loader API

Conclusion

Transpiling CommonJS for in-browser use

Bundling ES6 modules for synchronous loading

Summary

3. DOM Scripting and AJAX

High-speed DOM operations

Traversing the DOM

Changing the DOM

Styling the DOM

Making use of attributes and properties

Handling DOM events

Communicating with the server

XHR

Fetch API

Summary

4. HTML5 APIs

Storing data in web-browser

Web Storage API

IndexedDB

FileSystem API

Boosting performance with JavaScript workers

Creating the first web component

Learning to use server-to-browser communication channels

Server-Sent Events

Web Sockets

Summary

5. Asynchronous JavaScript

Nonblocking JavaScript

Error-first Callback

Continuation-passing style

Handling asynchronous functions in the ES7 way

Parallel tasks and task series with the Async.js library

Event handling optimization

Debouncing

Throttling

Writing callbacks that don't impact latency-critical events

Summary

6. A Large-Scale JavaScript Application Architecture

Design patterns in JavaScript

Understanding concern separation in JavaScript

MVVM

Using JavaScript MV* frameworks

Backbone

Angular

React

Summary

7. JavaScript Beyond the Browser

Levelling up the coding of a command-line program in JavaScript

Building a web server with JavaScript

Writing a desktop HTML5 application

Setting up the project

Adding the HTML5 application

Debugging

Packaging

Using PhoneGap to make a mobile native app

Setting up the project

Building the project

Adding plugins

Debugging

Summary

8. Debugging and Profiling

Hunting bugs

Getting the best from a console API

Tuning performance

Summary

Index