Async JavaScript

Praise for Async JavaScript

Dedication

Acknowledgments

Preface

Who is this book for?

Code style in this book

A word on “altJS”

1 The JavaScript Event Model

1.1 Now or later

1.2 When is a function async?

1.3 Async primitives

1.4 Nested callbacks

1.5 Exceptions in callbacks

1.6 Tools for taming JavaScript

2 Distributed Events

2.1 PubSub

2.2 Evented models

2.3 Custom jQuery events

2.4 Piping events with LucidJS

3 Promises and Deferreds

3.1 A very brief history of Promises

3.2 Making Promises

3.3 Passing arguments to callbacks

3.4 Progress notifications

3.5 Animation Promises

3.6 Combining Promises with when

3.7 Binding to the future with pipe

3.8 jQuery vs. Promises/A

3.9 Replacing callbacks with Promises

4 Flow Control with Async.js

4.1 The async ordering problem

4.2 Async collection methods

4.3 Chaining async functions

4.4 Parallelizing async functions

4.5 Dynamic async queueing

4.6 On autopilot

4.7 Minimalist flow control with Step

4.8 Other flow control libraries

5 Multi-threading with Workers

5.1 Web Workers

5.2 Node Workers with cluster

6 Async Problems and Solutions

6.1 Problem: Where’d this go?

6.2 Problem: Retrying async tasks

6.3 Problem: Testing async code

6.4 Problem: Aggregating events

6.5 Problem: Handling requests

6.6 Problem: Ajax spaghetti

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