mjs VS txiki.js

mjs

I hear you loud and clear.

This implementation is nuts. A decent chunk (but still very small subset) of ES5 in under 1400 lines of very readable C code. It includes a mark-and-sweep GC and an FFI.

It doesn't have an AST or a bytecode VM. It just interprets directly off of source code.

Take a look: https://github.com/cesanta/elk/blob/master/elk.c.

This implementation really sets a new bar for me in terms of compact-but-readable language implementations.

Separately, this isn't even Cesanta's only embedded JavaScript implementation. They also have: https://github.com/cesanta/mjs. This implementation is a bit more complete and is much bigger.

In the past I've programmed with ESP8266 with Mongoose OS using mJS - https://github.com/cesanta/mjs but it has on 1.5K GitHub stars and I assume there are other alternative as well for Python language

txiki.js

// https://github.com/denoland/deno/discussions/17236#discussioncomment-4566134 // https://github.com/saghul/txiki.js/blob/master/src/js/core/tjs/eval-stdin.js async function readFullAsync(length, buffer = new Uint8Array(65536)) { const data = []; while (data.length < length) { const input = await open("/dev/stdin"); let { bytesRead } = await input.read({ buffer }); await input.close(); if (bytesRead === 0) { break; } data.push(...buffer.subarray(0, bytesRead)); } return new Uint8Array(data); }

I've only dabbled with the shared libraries once, with the help of the owner of the lnked repository. I wound up solving the issue adjusting the code I was working on https://github.com/saghul/txiki.js/issues/294.

I have written the same code in C++ https://github.com/guest271314/captureSystemAudio/blob/master/native_messaging/capture_system_audio/capture_system_audio.cpp, Python https://github.com/guest271314/captureSystemAudio/blob/master/native_messaging/capture_system_audio/capture_system_audio.py, and QuickJS (C source code) https://github.com/saghul/txiki.js/issues/294. QuickJS is the only implementation that winds up clipping the end of real-time audio capture.

QuickJS is awesome, simple to use and very easy to integrate.

Over the past few years I slowly built a small JS runtime using QuickJS as the engine and libuv as the platform layer, amongst other things, in case anyone wants to take a look: https://github.com/saghul/txiki.js