just
the only javascript runtime to hit no.1 on techempower :fire: (by just-js)
jerryscript
Ultra-lightweight JavaScript engine for the Internet of Things. (by jerryscript-project)
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| just | jerryscript | |
|---|---|---|
| 25 | 14 | |
| 3,547 | 6,827 | |
| 0.6% | 0.3% | |
| 2.5 | 5.6 | |
| 6 months ago | 13 days ago | |
| JavaScript | C | |
| MIT License | Apache License 2.0 |
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.
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.
just
Posts with mentions or reviews of just.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-10.
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A list of JavaScript engines, runtimes, interpreters
just
- Just-JS: small, secure, robust and performant JavaScript runtime for Linux
- Elixir Saves Pinterest $2M a Year in Server Costs
- GitHub - just-js/just: a very small v8 javascript runtime for linux only
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I have done a full benchmark of a POST REST API on my computer: Node.js vs Fastify vs Express.js vs Deno vs Bun vs GO. Node.js is used WITH and WITHOUT clustering on 6-core I7 processor
https://github.com/just-js/just Is another for a V8 runtime, it really shows how well optimized it is. https://www.techempower.com/benchmarks/#section=data-r21
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Bun v0.6.0 – Bun's new JavaScript bundler and minifier
i just tried recompiling v0.0.2 (https://github.com/just-js/just/releases/tag/0.0.2) of just-js and comparing it to current. for the completely static build on ubuntu 22.04 i see following:
0.0.2 (v8 v8.4.371.18) - file size: 15.2 MB, startup RSS: 8.4 MB
- Just – A small V8 JavaScript runtime for Linux only
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Is Scala to Java the same relationship as TypeScript has with ECMAScript?
Not at all. Javascript, as well as java compiled into the bytecode, but just incrementally and at the runtime. You cannot compile typescript into bytecode directly (at least it intend to be like that). You can even compile js to executable (https://github.com/just-js/just). So no, typescript transpiles to javascript, whereas scala compiles to bytecode, it's different things
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A C++ web/application framework I have been building for the last 12yrs
Trust me, these guys are insane and go to really extreme levels and use optimization techniques which are not generally prevalent among the general programming fraternity. for eg, look at pico.v it is awesome and just-js is truly unbelievable, then there is faf, most of them combine low level programming trickery to reach those insane numbers. Also some of the code may not be useful in a production app but they actually extract the juice out of the metal at every instance. Memory optimizations, compiler optimizations, postgresql wire implmentations, rust black magic, these guys are really crazy and passionate.
- Caffè Italia * 26/10/22
jerryscript
Posts with mentions or reviews of jerryscript.
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
JerryScript
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JavaScript Runtime and Code Lifecycle
Some IoT platforms use Duktape and JerryScript as their engines.
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DeviceScript: TypeScript for Tiny IoT Devices
I've been having a lot of fun with https://kalumajs.org/ recently for silly JS embedded things. It's been great so far, and has a cool little community!
It's a runtime built on top of JerryScript, which has been pretty neat to look into as well: https://jerryscript.net/
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Good example open source C++ embedded projects
Jerryscript came to mind : https://github.com/jerryscript-project/jerryscript
- Arduino Announces MicroPython Support
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JavaScript embedded inside Elixir
I personally quite like JerryScript
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Kaluma - tiny JavaScript runtime for microcontrollers - includes a browser-based IDE that can communicate with a Raspberry Pi Pico and other RP2040 boards via Web Serial API. Write code in the browser (in JavaScript), then copy and run it on the board with a click of a button.
Based on JerryScript, the creators also provide an IDE and serial communication tool on their website. There's also ample documentation and guides. Looking forward to getting more into this.
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TypeScript is the Only Programming Language you Need: TypeScript Everywhere
I hear you loud and clear.
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Can the PineTime Watch stream music without a phone? (Onboard music storage)
There are subsets of JS for embedded device e.g. Espruino https://github.com/espruino/Espruino for BangleJS https://shop.espruino.com/banglejs also with 4MB or JerryScript https://jerryscript.net
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Txiki.js: Tiny JavaScript runtime built with QuickJS and libuv
Fitbit uses Jerryscript in some of their watch OSes. Well, at least they were last time I was tinkering with making my own watch face
https://jerryscript.net/
What are some alternatives?
When comparing just and jerryscript you can also consider the following projects:
bun - Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
quickjs - Public repository of the QuickJS Javascript Engine.
fastapi - FastAPI framework, high performance, easy to learn, fast to code, ready for production
Duktape - Duktape - embeddable Javascript engine with a focus on portability and compact footprint
ntex - framework for composable networking services
MicroPython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
hermes - A JavaScript engine optimized for running React Native.
Espruino - The Espruino JavaScript interpreter - Official Repo
quickjspp - Port of QuickJS Javascript Engine.
picohttpparser - tiny HTTP parser written in C (used in HTTP::Parser::XS et al.)