252 Open source projects that are alternatives of or similar to hacker-rank

A DSL for validating data in a functional fashion

Customizable, functional css utilities

More Dart — Literally.

A functional music theory library for Javascript

A CHIP-8 Emulator written in Haskell

The Disco Discus Compiler

Fast cartesian product

🍃 Kotlin Spring 5 Webflux functional application with api request validation and interactive api doc

Simple and expressive toolbox written in Go

145+ extra higher-level functional tools beyond standard library's `itertools`, `functools`, etc. and popular third-party libraries like `toolz`.

A functional module for Deno inspired from Ramda.

"A collection of functional programming libraries that can be composed together. Unlike a framework, thi.ng is a suite of instruments and you (the user) must be the composer of. Geared towards versatility, not any specific type of music." — @loganpowell via Twitter

A small package to simplify partial function application

Functional plumbing for Python

😎 Java™ modern tech practice sandbox ⏳

Most.js based middleware for Redux. Handle async actions with monadic streams & reactive programming.

Reliable, standards-oriented software for browsers & Node.

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

State-management and action-dispatching for Ruby apps

Lightweight curried functional programming library

Functional DI explorations in Swift

Minimal http4s + Doobie + ZIO + Circe Scala application to show how to build a purely functional web application in Scala.

Automated database-enabled navigation ✔️ of web applications

🧙 ‎‎ A 3D game about functional programming patterns. Uses PureScript Native, C++, and Panda3D.

The parallel, concurrent, and functional programming language for scalable software development

🎑 Watermarking for the browser

Starting code and proposed solution for Functional Structures Refactoring Kata

Exemplary real world application built with Effector + React

No more null check with an dart equivalent of Maybe (Haskel, Elm) / Option (F#).

⚗️ Functional JSON Parser - Linux Ready 🐧

An extremely small, intuitive and fast functional utility library for JavaScript

A statically-typed, functional and reactive framework for modern browsers

Functional library for PHP with proper currying

A utility for working with nested data structures.

🎧 Simple React functional setState

StoreKit library for RxSwift

How JavaScript Promise Works

👏 Microscopic & functional event emitter in ~350 bytes, extensible through plugins.

WebExtension for Buku

funcy.js - a functional web components wrapper

Yet another implementation of missing functions for Python

A Virtual DOM based templating-engine for PHP

Flow is a Swift library for working with asynchronous flows and life cycles

A reactive programming library for JavaScript.

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

Examples and exercises from the blog series

A functional-first toolkit for building brilliant ASP.NET Core applications using F#.

Suave is a simple web development F# library providing a lightweight web server and a set of combinators to manipulate route flow and task composition.

React + TypeScript app built using the clean architecture principles in a more functional way · 🧼 🏛 🍪

Ramda + Ramda Fantasy + Sanctuary REPL 🌿

A static, type inferred and embeddable language written in Rust.

Functional 3d graphics library

Coconut syntax highlighting for Sublime Text and VSCode.

A parser combinator library written in the Swift programming language.

Immutability is easy!

Website for Saturn + Azure + Fable + Elmish aka SAFE-Stack

A functional web framework

Just use() code from anywhere - a functional import alternative with advanced features like inline version checks, autoreload, module globals injection before import and more.

🌿 Data structures for JavaScript

Irken is a statically typed variant of Scheme. Or a lisp-like variant of ML.