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

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

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

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