#fp-ts

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

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

Quick reference for TaskEither. Use when user needs async error handling, API calls, or Promise-based operations that can fail.

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

Quick reference for Either type. Use when user needs error handling, validation, or operations that can fail with typed errors.

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

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

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

Quick reference for pipe and flow. Use when user needs to chain functions, compose operations, or build data pipelines in fp-ts.

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

Quick reference for fp-ts types. Use when user asks which type to use, needs Option/Either/Task decision help, or wants fp-ts imports.

Quick reference for Option type. Use when user needs to handle nullable values, optional data, or wants to avoid null checks.