Functional JavaScript

Michael Fogus is software developer with experience in distributed simulation, machine vision, and expert systems construction. He's actively involved in the Clojure and Scala communities.

Chapter 1 Introducing Functional JavaScript
The Case for JavaScript
Getting Started with Functional Programming
The Case for Underscore
Summary
Chapter 2 First-Class Functions and Applicative Programming
Functions as First-Class Things
Applicative Programming
Data Thinking
Summary
Chapter 3 Variable Scope and Closures
Global Scope
Lexical Scope
Dynamic Scope
Function Scope
Closures
Summary
Chapter 4 Higher-Order Functions
Functions That Take Other Functions
Functions That Return Other Functions
Putting It All Together: Object Validators
Summary
Chapter 5 Function-Building Functions
The Essence of Functional Composition
Currying
Partial Application
Stitching Functions End-to-End with Compose
Summary
Chapter 6 Recursion
Self-Absorbed Functions (Functions That Call Themselves)
Codependent Functions (Functions Calling Other Functions That Call Back)
Too Much Recursion!
Recursion Is a Low-Level Operation
Summary
Chapter 7 Purity, Immutability, and Policies for Change
Purity
Immutability
Policies for Controlling Change
Summary
Chapter 8 Flow-Based Programming
Chaining
Pipelining
Data Flow versus Control Flow
Summary
Chapter 9 Programming Without Class
Data Orientation
Mixins
}).call("Finis");

Appendix Functional JavaScript in the Wild
Functional Libraries for JavaScript
Functional Programming Languages Targeting JavaScript
Appendix Annotated Bibliography
Papers/Books/Blog Posts/Talks
Presentations
Blog Posts
Journal Articles
Colophon

»Michael Fogus has written a detailed, pragmatic introduction to functional programming in JavaScript. The concepts are illustrated by practical examples, many using the popular Underscore.js toolkit. Together, the examples provide an excellent vision for concise, elegant, and robust JavaScript development.« Dean Wampler, Ph.D.

»An alternate title could easily have been ›JavaScript: The Best Parts‹. Applying these functional concepts to JavaScript will change how you approach problems withe the language.« Rob Friesel, Sr. User Interface Developer, Dealer.com