Take advantage of JavaScript's power to build robust web-scale or enterprise applications that are easy to extend and maintain. By applying the design patterns outlined in this practical book, experienced JavaScript developers will learn how to write flexible and resilient code that's easier—yes, easier to work with as your code base grows.

JavaScript may be the most essential web programming language, but in the real world, JavaScript applications often break when you make changes. With this book, author Eric Elliott shows you how to add client - and server-side features to a large JavaScript application without negatively affecting the rest of your code.

Examine the anatomy of a large-scale JavaScript application

Build modern web apps with the capabilities of desktop applications

Learn best practices for organization code, modularity, reuse and

Separate your application into different layers of responsibility

Build efficient, self-describing hypermedia APIs with Node.js

Test, integrate, and deploy software updates in rapid cycles

Control resource access with user authentication and authorization

Expand your application's reach through internationalization

Table of Contents

Chapter 1 The Revolution JavaScript

Advantages of JavaScript

Anatomy of a Typical Modern JavaScript App

Chapter 2 Functions

Minimize Side Effects

Function Definition

Function Scope

Method Design

Functional Programming

Asynchronous Operations

Conclusion

Chapter 3 Objects

Classical Inheritance Is Obsolete

Fluent-Style JavaScript

Prototypes

Object Creation

Factories

Prototypal Inheritance with Stamps

Conclusion

Chapter 4 Modules

Principles of Modularity

Interfaces

The Module Pattern

Asynchronous Module Definition

Node-Style Modules

npm

ES6 Modules

Building Client-Side Code with CommonJS, npm, Grunt, and Browserify

Conclusion

Chapter 5 Separation of Concerns

Client-Side Concerns

Server-Side Concerns

Conclusion

Chapter 6 Access Control

Authentication

Authorization

Conclusion

Chapter 7 Logging

Debugging

Server Operations

Security

Auditing

Business Analytics

Logging Checklist

Logging Requests

Logging Errors

Sample Output Log

Logging Service Alerts

Logging Goals

Profiling and Instrumentation

Logging Client-Side Events

Deciphering Data

Conclusion

Chapter 8 Building RESTful APIs

Usable

Self-Describing: Hypermedia

Responsive APIs

Optimizing for Speed

Conclusion

Chapter 9 Feature Toggle

Organizing Features

Lifespan of a Feature

Implementation

Conclusion

Chapter 10 Internationalization

Conclusion

Appendix JavaScript Style Guide

Example Tests

QUnit Primer

Code Quality

Best Practices Quick Reference

Colophon

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