C# pure functional programming framework - come and get declarative!

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8 . It aims to reduce the lines of code and increase code quality.

Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

Immutable persistent collections for Kotlin

A high-performance immutable mapping type for Python.

A revolutionary ORM framework for both java and kotlin.

Immutable and statically-typeable DataFrames with runtime type and data validation

The Capsule Hash Trie Collections Library

Functional programming, immutable collections and FP constructs for typescript and javascript

Generic, Null-safe, Immutable Collections and Functional Transformations for the JVM

Thread-safe, persistent, immutable collections for the Crystal language

Power of object-oriented programming with the elegance of functional programming in PHP.

Functional, composable, asynchronous, type-safe Python.

Functional Programming library for Java

Library providing fast hash based immutable map and set

The purpose of this PoC is to implement main real life app use cases and see if Riverpod elegantly supports all the needed mutations.

Efficient Immutable/Persistent Collections for Java

Artifact accompanying our OOPSLA'15 publication.

GWT module for Vavr