Kadu Maverick

Everyday data transformations using functional patterns - arrays, objects, grouping, aggregation, and null-safe access

Product types, sum types, semigroups, monoids, Eq, Ord, and building custom type class instances for domain modeling in TypeScript

Functional programming patterns for Node.js/Deno backend development using fp-ts, ReaderTaskEither, and functional dependency injection

Practical patterns for composing functions in TypeScript using pipe, flow, and functional design principles

Practical immutability patterns in TypeScript - spread operators, nested updates, readonly types, and when mutation is actually fine

Master Do notation in fp-ts to write readable, sequential functional code without callback hell. Covers bind, apS, let, bindTo and real-world patterns.

Core FP concepts including pure functions, currying, composition, and pointfree style - the foundation for mastering functional TypeScript

Master function composition in fp-ts using pipe and flow for building elegant, type-safe data transformation pipelines

A practical, jargon-free guide to functional programming - the 80/20 approach that gets results without the academic overhead

Comprehensive guide for refactoring imperative TypeScript code to fp-ts functional patterns

Practical patterns for using fp-ts with React - hooks, state, forms, data fetching. Works with React 18/19, Next.js 14/15.

Master functional approaches to side effects including IO types, effect isolation, idempotent operations, and quarantining impure code - essential patterns for reliable TypeScript applications

Validation patterns using fp-ts with error accumulation, form validation, and API input validation

Practical async patterns using TaskEither - clean pipelines instead of try/catch hell, with real API examples

Functional async patterns using TaskEither for type-safe error handling in TypeScript

Stop throwing everywhere - handle errors as values using Either and TaskEither for cleaner, more predictable code

Functional error handling and nullable value management using fp-ts Option and Either types