ringojs vs napajs

ringojs

RingoJS is a JavaScript platform built on the JVM and optimized for server-side applications. (by ringo)

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ringojs.org

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napajs

Napa.js: a multi-threaded JavaScript runtime (by microsoft)

JavaScript Multithreading NodeJS napajs Runtime Parallel multi-core

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ringojs		napajs
	Project
1	Mentions	6
838	Stars	9,238
-0.1%	Growth	0.0%
3.5	Activity	0.0
7 months ago	Latest Commit	over 1 year ago
JavaScript	Language	C++
Apache License 2.0	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

ringojs

Posts with mentions or reviews of ringojs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-26.

Napa.js: A multi-threaded JavaScript runtime
4 projects | news.ycombinator.com | 26 Oct 2022

Reminds me of the great old RingoJS project https://github.com/ringo/ringojs which do or did power some of Austrias biggest websites.

napajs

Posts with mentions or reviews of napajs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-10.

A list of JavaScript engines, runtimes, interpreters
23 projects | /r/learnjavascript | 10 Dec 2023

Napa.js
Napa.js: A multi-threaded JavaScript runtime
1 project | /r/hypeurls | 26 Oct 2022

4 projects | news.ycombinator.com | 26 Oct 2022

Each thread or worker is a V8 Isolate, each with their own GC. I don't think WeakMaps could cross the isolate boundary.
The project lists a set of "transportable" types, which can be passed in as an argument when calling a worker function - https://github.com/microsoft/napajs/blob/master/docs/api/tra...
NapaJS: Multi-Threaded Processing for Node.js
1 project | news.ycombinator.com | 10 Sep 2021

What are some alternatives?

When comparing ringojs and napajs you can also consider the following projects:

helma - Antville Fork of Helma Object Publisher

socket - A cross-platform runtime for Web developers to build desktop & mobile apps for any OS using any frontend library.

ChakraCore - ChakraCore is an open source Javascript engine with a C API.

VectorizedKernel - Running GPGPU-like kernels on CPU with auto-vectorization for SSE/AVX/AVX512 SIMD Architectures

hello-world-deno-action - 🦕 Demo action using Deno

ONE - On-device Neural Engine

io.js - Node.js JavaScript runtime :sparkles::turtle::rocket::sparkles: [Moved to: https://github.com/nodejs/node]

hinapi - Node.js native addons without node-gyp!

MelonRuntime - ✨ .NET-based JavaScript runtime focused in rapid prototyping of projects, using minimal dependencies and functional programming

RaftLib - The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators

uWebSockets.js - μWebSockets for Node.js back-ends :metal:

Parallel-And-Concurrent-Programming - Concurrent and parallel programming might seem complex, but this guide simplifies it. Learn about sequential vs non-sequential programming, processes, and threads. Explore examples in popular languages like C++, Python, and JavaScript to apply your new knowledge to your projects.