🔧 Fast, modern, and practical utility library for FP in TypeScript.
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May 27, 2024 - TypeScript
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option
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Option, Result, and Either types for TypeScript - Inspired by Rust 🦀
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Oct 20, 2025 - TypeScript
Essential building-blocks for functional & safe TypeScript code
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Apr 23, 2026 - TypeScript
Functional programming for deno and javascript. Monads, semigroups, optics, parsers, state management, yadda yadda yadda.
task typescript functional-programming effects algebraic-data-types monad functor option either higher-kinded-types deno
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May 13, 2026 - TypeScript
Manage assets on Opyn V1 (Convexity).
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Dec 31, 2022 - TypeScript
Simplify your TypeScript and JavaScript code. Use this lib and functional programming.
javascript typescript es6 functional-programming monad functional-js option result predicates either primitives-functions
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Oct 16, 2024 - TypeScript
Functional helpers including `Async` and `Result` to help enable things like "railway-oriented" programming. Heavily inspired by F#
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Nov 1, 2023 - TypeScript
Experimental implementation of Maybe and Result monads compatible with await.
javascript typescript js functional-programming ts fp monad error-handling await option maybe async-await
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Sep 9, 2020 - TypeScript
AssemblyScript version of Rust Option<T> and Result<O, E> etc.
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May 9, 2024 - TypeScript
brings Option / Result / match from Rust to Javascript
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Jan 5, 2023 - TypeScript
Rust-like but for TypeScript/JavaScript
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Jun 1, 2026 - TypeScript
Encode failure and absence of value in TypeScript
rust haskell typescript scala nim ocaml option-type optional option result type-safety result-type result-pattern option-pattern
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Feb 26, 2026 - TypeScript
Utilities for composable approach to handle null and undefined
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Mar 4, 2023 - TypeScript
A Typescript implementation of the Maybe data type
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Mar 2, 2021 - TypeScript
OCaml's Result and Option modules in TypeScript, for funzies.
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May 8, 2024 - TypeScript
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