21 Open source projects that are alternatives of or similar to either

A small typed and safe library for error handling with functionnal programming concept in Dart and flutter project

Functions for tacit programming and functional types for TypeScript and JavaScript.

A minimal library that defines primitive building blocks of PHP code.

A lightweight C++11-compatible error-handling mechanism

detail rust error handle

🔧 Fast, modern, and practical utility library for FP in TypeScript.

Functional chaining and promises in Swift

Store data created during your `pytest` tests execution, and retrieve it at the end of the session, e.g. for applicative benchmarking purposes.

Esito ambition is to be your return type for suspending functions.

Fast strong typed 'Either' data structure for typescript and flow

🦋 Scala monads for javascript

Powerful pipes for TypeScript, that chain Promise and ADT for you 🚌 -> ⛰️ -> 🚠 -> 🏂 -> 🚀

A Java library that enables applying Functional Programming concepts like currying and partial application for functions, also it supports types like Either, Try, etc... using RxJava 2 interfaces, compatible with Java 7 and above

a code gen solution for defining sealed classes, data classes, and enum classes for dart.

Makes `A | Null` work with for-comprehensions

A code generator enabling sum-types in Dart

ftor enables ML-like type-directed, functional programming with Javascript including reasonable debugging.

ADT sum type in typescript

A type-safe and space-efficient sum type for C# (comparable to discriminated unions in C or C++)

A namedtuple-style library for defining immutable sum types in Python.

Recursive Variant: A simple library for Recursive Variant Types