Functional JavaScript. Introducing Functional Programming with Underscore.js

Spis treści ebooka

• Functional JavaScript
• Dedication
• Foreword by Jeremy Ashkenas
• Foreword by Steve Vinoski
• Preface
  • What Is Underscore?
    • Getting Underscore
    • Using Underscore
    • The Source Code for Functional JavaScript
    • Running the Code in This Book
    • Notational Conventions
  • Whom Functional JavaScript Is Written For
  • A Roadmap for Functional JavaScript
  • Conventions Used in This Book
  • Using Code Examples
  • Safari Books Online
  • How to Contact Us
  • Acknowledgments
• 1. Introducing Functional JavaScript
  • The Case for JavaScript
    • Some Limitations of JavaScript
  • Getting Started with Functional Programming
    • Why Functional Programming Matters
    • Functions as Units of Abstraction
    • Encapsulation and Hiding
    • Functions as Units of Behavior
    • Data as Abstraction
    • A Taste of Functional JavaScript
    • On Speed
  • The Case for Underscore
  • Summary
• 2. First-Class Functions and Applicative Programming
  • Functions as First-Class Things
    • JavaScripts Multiple Paradigms
      • Imperative programming
      • Prototype-based object-oriented programming
      • Metaprogramming
  • Applicative Programming
    • Collection-Centric Programming
    • Other Examples of Applicative Programming
      • reduceRight
      • find
      • reject
      • all
      • any
      • sortBy, groupBy, and countBy
    • Defining a Few Applicative Functions
  • Data Thinking
    • Table-Like Data
  • Summary
• 3. Variable Scope and Closures
  • Global Scope
  • Lexical Scope
  • Dynamic Scope
    • JavaScripts Dynamic Scope
  • Function Scope
  • Closures
    • Simulating Closures
      • Free variables
      • Shadowing
    • Using Closures
    • Closures as an Abstraction
  • Summary
• 4. Higher-Order Functions
  • Functions That Take Other Functions
    • Thinking About Passing Functions: max, finder, and best
      • Tightening it up a bit
    • More Thinking About Passing Functions: repeat, repeatedly, and iterateUntil
      • Use functions, not values
      • I said, Use functions, not values
  • Functions That Return Other Functions
    • Capturing Arguments to Higher-Order Functions
    • Capturing Variables for Great Good
      • Take care when mutating values
    • A Function to Guard Against Nonexistence: fnull
  • Putting It All Together: Object Validators
  • Summary
• 5. Function-Building Functions
  • The Essence of Functional Composition
    • Mutation Is a Low-Level Operation
  • Currying
    • To Curry Right, or To Curry Left
    • Automatically Currying Parameters
      • Building new functions using currying
      • Currying three parameters to implement HTML hex color builders
    • Currying for Fluent APIs
    • The Disadvantages of Currying in JavaScript
  • Partial Application
    • Partially Applying One and Two Known Arguments
    • Partially Applying an Arbitrary Number of Arguments
    • Partial Application in Action: Preconditions
  • Stitching Functions End-to-End with Compose
    • Pre- and Postconditions Using Composition
  • Summary
• 6. Recursion
  • Self-Absorbed Functions (Functions That Call Themselves)
    • Graph Walking with Recursion
    • Depth-First Self-Recursive Search with Memory
      • Tail (self-)recursion
    • Recursion and Composing Functions: Conjoin and Disjoin
  • Codependent Functions (Functions Calling Other Functions That Call Back)
    • Deep Cloning with Recursion
    • Walking Nested Arrays
  • Too Much Recursion!
    • Generators
    • The Trampoline Principle and Callbacks
  • Recursion Is a Low-Level Operation
  • Summary
• 7. Purity, Immutability, and Policies for Change
  • Purity
    • The Relationship Between Purity and Testing
    • Separating the Pure from the Impure
    • Property-Testing Impure Functions
    • Purity and the Relationship to Referential Transparency
    • Purity and the Relationship to Idempotence
  • Immutability
    • If a Tree Falls in the Woods, Does It Make a Sound?
    • Immutability and the Relationship to Recursion
    • Defensive Freezing and Cloning
    • Observing Immutability at the Function Level
    • Observing Immutability in Objects
    • Objects Are Often a Low-Level Operation
  • Policies for Controlling Change
  • Summary
• 8. Flow-Based Programming
  • Chaining
    • A Lazy Chain
    • Promises
  • Pipelining
  • Data Flow versus Control Flow
    • Finding a Common Shape
    • A Function to Simplify Action Creation
  • Summary
• 9. Programming Without Class
  • Data Orientation
    • Building Toward Functions
  • Mixins
    • Core Prototype Munging
    • Class Hierarchies
    • Changing Hierarchies
    • Flattening the Hierarchy with Mixins
    • New Semantics via Mixin Extension
    • New Types via Mixin Mixing
    • Methods Are Low-Level Operations
  • }).call(Finis);
• A. Functional JavaScript in the Wild
  • Functional Libraries for JavaScript
    • Functional JavaScript
    • Underscore-contrib
    • RxJS
    • Bilby
    • allong.es
    • Other Functional Libraries
  • Functional Programming Languages Targeting JavaScript
    • ClojureScript
    • CoffeeScript
    • Roy
    • Elm
• B. Annotated Bibliography
  • Papers/Books/Blog Posts/Talks
  • Presentations
  • Blog Posts
  • Journal Articles
• Index
• About the Author
• Colophon
• Copyright

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