Async JavaScript Build More Responsive Apps with Less Code 1st Edition by Trevor Burnham 1937785270 9781937785277

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Product details:

ISBN 10: 1937785270

ISBN 13: 9781937785277

Author: Trevor Burnham

With the advent of HTML5, front-end MVC, and Node.js, JavaScript is ubiquitous–and still messy. This book will give you a solid foundation for managing async tasks without losing your sanity in a tangle of callbacks. It’s a fast-paced guide to the most essential techniques for dealing with async behavior, including PubSub, evented models, and Promises. With these tricks up your sleeve, you’ll be better prepared to manage the complexity of large web apps and deliver responsive code. With Async JavaScript, you’ll develop a deeper understanding of the JavaScript language. You’ll start with a ground-up primer on the JavaScript event model–key to avoiding many of the most common mistakes JavaScripters make. From there you’ll see tools and design patterns for turning that conceptual understanding into practical code. The concepts in the book are illustrated with runnable examples drawn from both the browser and the Node.js server framework, incorporating complementary libraries including jQuery, Backbone.js, and Async.js. You’ll learn how to create dynamic web pages and highly concurrent servers by mastering the art of distributing events to where they need to be handled, rather than nesting callbacks within callbacks within callbacks. Async JavaScript will get you up and running with real web development quickly. By the time you’ve finished the Promises chapter, you’ll be parallelizing Ajax requests or running animations in sequence. By the end of the book, you’ll even know how to leverage Web Workers and AMD for JavaScript applications with cutting-edge performance. Most importantly, you’ll have the knowledge you need to write async code with confidence. What You Need: Basic knowledge of JavaScript is recommended. If you feel that you’re not up to speed, see the “Resources for Learning JavaScript” section in the preface.

Async JavaScript Build More Responsive Apps with Less Code 1st Table of contents:

Chapter 1: Understanding JavaScript Events

Scheduling Events

Types of Async Functions

Writing Async Functions

Handling Async Errors

Un-nesting Callbacks

What We’ve Learned

Chapter 2: Distributing Events

PubSub

Evented Models

Custom jQuery Events

What We’ve Learned

Chapter 3: Promises and Deferreds

A Very Brief History of Promises

Making Promises

Passing Data to Callbacks

Progress Notifications

Combining Promises

Binding to the Future with pipe

jQuery vs. Promises/A

Replacing Callbacks with Promises

What We’ve Learned

Chapter 4: Flow Control with Async.js

The Async Ordering Problem

Async Collection Methods

Organizing Tasks with Async.js

Dynamic Async Queuing

Minimalist Flow Control with Step

What We’ve Learned

Chapter 5: Multithreading with Workers

Web Workers

Node Workers with cluster

What We’ve Learned

Chapter 6: Async Script Loading

Limitations and Caveats

Reintroducing the Tag

Programmatic Loading

What We’ve Learned

Appendix 1: Tools for Taming JavaScript

TameJS

StratifiedJS

Kaffeine

Streamline.js

Node-Fibers

The Future of JavaScript: Generators

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Trevor Burnham,Async,JavaScript,Responsive