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either
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Functional programming library for TypeScript - https://gigobyte.github.io/purify/
typescript functional-programming algebraic-data-types monad functor decode codec option-type fantasy-land maybe either result-type
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Dec 16, 2025 - TypeScript
A multiplatform Result monad for modelling success or failure operations.
kotlin ios functional browser js functional-programming jvm class fp monad type result either kotlin-multiplatform
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Jul 4, 2026 - Kotlin
The most powerful IO monad implementation in JS, possibly in any language!
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May 1, 2026 - JavaScript
Option, Result, and Either types for TypeScript - Inspired by Rust 🦀
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Oct 20, 2025 - TypeScript
Functional patterns for Java
java lambda functional-programming tuples io-monad algebraic-data-types monad functor lenses monoid semigroup optics either hlist profunctors traversable coproduct maybe-monad bifunctors try-monad
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May 1, 2023 - Java
Either and Maybe monads for better error-handling in C++
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Oct 31, 2019 - C++
The TypeScript Standard Library
list library typescript immutable functional curried composition standard lenses future maybe either
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Dec 3, 2022 - 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
Common Functional Programming Algebraic data types for JavaScript that is compatible with most modern browsers and Deno.
task functional browser functional-programming fold io-monad algebraic-data-types functor category-theory monoid maybe either either-monad task-monad maybe-monad catamorphism deno denoland
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Jun 10, 2021 - JavaScript
💊 Your go-to, prescribed, error-boundary component for React
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Dec 9, 2022 - JavaScript
A short course on Functional Programming in Typescript
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Jan 5, 2022 - TypeScript
Result, Either, Try, and Maybe monadic types for Java
java monads types jvm algebraic-data-types error-handling try jdk adt result either sum-types railway-oriented-programming either-monad result-type maybe-monad try-monad result-monad sealed-class
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May 7, 2025 - Java
Functional error handling for Java
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Aug 11, 2026 - Java
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
Handle side-effects in Python like a boss. Implements functional types for Either, Option, Try, and Future.
python monads python3 monad try option-type future option either futures python27 hacktoberfest try-catch either-monad future-monad try-monad option-monad hacktoberfest-accepted hacktoberfest2023
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Jul 15, 2024 - Python
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