Functional-Light JavaScript, v3

Learn to apply functional programming concepts in JavaScript to make your programs more readable and less error-prone! Kyle Simpson will walk you through the core concepts of functional programming like function purity, point-free style, partial-application, currying, composition, immutability, recursion, and list operations like map/reduce/filter. You'll go even deeper with monads and transduction, two more techniques to add to your tool belt!

• Introduction
• Why Functional Programming
• Functional Programming Journey
• Code is Provable
• Course Overview
• Functions vs Procedures
• Function Naming Semantics
• Side Effects
• Pure Functions & Constants
• Reducing Surface Area
• Same Input, Same Output
• Level of Confidence
• Extracting Impurity
• Containing Impurity
• Impurity Exercise: Wrappers & Adapters
• Impurity Solution: Wrappers
• Impurity Solution: Adapters
• Function Arguments
• Arguments Shape Adapters
• Flip & Reverse Adapter
• Spread Adapter
• Equational Reasoning
• Point Free Refactor
• Point Free Exercise
• Point Free Solution
• Advanced Point Free
• Closure
• Closure Exercise
• Closure Solution
• Lazy vs Eager Execution
• Memoization
• Referential Transparency
• Generalized to Specialized
• Partial Application & Currying
• Partial Application & Currying Comparison
• Changing Function Shape with Curry
• Composition Illustration
• Declarative Data Flow
• Piping vs Composition
• Piping & Composition Exercise
• Piping & Composition Solution
• Associativity
• Composition with Currying
• Immutability
• Rethinking const Immutability
• Value Immutability
• Object.freeze
• Don't Mutate, Copy
• Immutable Data Structures
• Immutable.js Overview
• Immutability Exercise
• Immutability Solution
• Recursion
• Base Condition Location
• Recursion Exercise
• Recursion Solution
• Stack Frames & Memory Limits
• Optimization: Tail Calls
• Proper Tail Calls
• Refactoring to PTC Form
• Continuation-Passing Style
• Trampolines
• CPS & Trampolines Q&A
• Map: Transformation
• Filter: Inclusion
• Reduce: Combination
• Composition with Reduce
• List Operations Exercise
• List Operations Solution: add & constant
• List Operations Solution: addn
• List Operations Solution: Modify Collection
• Fusion
• Transduction
• Transduction Q&A
• Deriving Transduction: Extracting Reduce
• Deriving Transduction: Combiner & Currying
• Deriving Transduction: Single Reduce
• Derivation Summary and Q&A
• Data Structure Operations
• Object Filter & Reduce Exercise
• Object Filter & Reduce Solution
• Advanced Point Free Exercise
• Advanced Point Free Solution
• Monad Data Structures
• Just Monad
• Maybe Monad
• Monads Q&A
• Map Lazy & Lazy Array
• Observables
• Reactive Programming with Rx.js
• Async with Rx.js Exercise
• Async with Rx.js Solution
• Lodash/FP
• Ramda
• FPO
• Wrapping Up