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

The most advanced ORM of JVM, for both java & kotlin

A high-performance immutable mapping type for Python.

A full-stack example app built with JHipster, Spring Boot, Kotlin, Angular 4, ngrx, and Webpack

Automatically perform UITableView and UICollectionView animations between two sets of immutable data. It supports generic data types and is fully thread-safe.

A python lens library for manipulating deeply nested immutable structures

C++ as a Pure Functional Programming Language

Immutable and persistent collections for PHP

Functional, composable, asynchronous, type-safe Python.

Write small programs (eg -algorithms) in a functional way.

A typed, persistent store for values of arbitrary types

An implementation of HAMT data-structure in Swift

Purely functional data structures in Java

immutable datastructures in lua

Immutable/Constant Objects for JavaScript

Mutable and immutable persistent maps and sets as hash array mapped trie (HAMT) for FreePascal

A Scala library that provides various data structures.

Mathematical numerical named static constants useful for different disciplines

Reimplementing the Haskell prelude in Scala (for fun)

Scala Exercises for the Scala Optics library Monocle http://julien-truffaut.github.io/Monocle/