Functional Programming in JavaScript

In this section

• Functional Programming Principles in JavaScript
  Apply JavaScript functional programming principles such as purity, immutability, composition, and explicit data flow.
• Pure Functions and Immutability in JavaScript Functional Programming
  Write JavaScript pure functions and immutable updates that reduce side effects, simplify tests, and preserve data integrity.
• Higher-Order Functions and Function Composition in JavaScript
  Build reusable JavaScript behavior with higher-order functions, composition, adapters, and small pure transformations.
• Currying and Partial Application in Functional JavaScript
  Use currying and partial application in functional JavaScript to specialize functions and compose reusable behavior.
• Recursion and Recursive Patterns in JavaScript
  Use JavaScript recursion for tree and nested-data problems while managing base cases, stack limits, and iterative alternatives.
• Using Map, Filter, and Reduce in JavaScript
  Transform JavaScript collections with map, filter, and reduce while keeping callbacks pure and intent clear.
• Functors and Monads in JavaScript
  Understand JavaScript functors and monads as patterns for mapping, chaining, nullable values, and async computations.
• Lazy Evaluation Techniques in JavaScript
  Delay JavaScript computation with generators, iterables, thunks, and lazy pipelines to avoid unnecessary work.
• Transducers for Data Transformation in JavaScript
  Build JavaScript transducers to compose transformations without intermediate collections or repeated traversal.
• Point-Free Style Programming in JavaScript
  Use point-free JavaScript carefully with composition and currying while preserving readability and debugging clarity.
• Immutable Data Structures with Immutable.js
  Use Immutable.js to model persistent data, structural sharing, update paths, and predictable JavaScript state changes.
• Functional Error Handling with Either and Maybe in JavaScript
  Model JavaScript failures with Either and Maybe to make absence, validation, and recoverable errors explicit.
• Functional Reactive Programming in JavaScript
  Combine functional and reactive JavaScript techniques with RxJS streams, operators, subscriptions, and async data flow.
• Functional Programming with Ramda and Lodash/fp in JavaScript
  Use Ramda and Lodash/fp for JavaScript composition, currying, data-last utilities, and functional pipeline style.
• Lens Pattern for JavaScript Data Manipulation
  Use JavaScript lenses to read and update nested data immutably without scattering path logic across code.
• Composing Promises and Async Functions in JavaScript
  Compose JavaScript promises and async functions with pipelines, sequencing, concurrency limits, and explicit error handling.