Woah, that's really cool. I might keep this in mind for my next game jam.
Is it possible to compile standalone binaries from Javascript programs with this? I know that's not really what JS is "for", but it'd be neat to be able to do. 😀

Nice work though!

Hi xjas,

no, sorry, the scripts are not compiled but interpreted.
But you can create a BAT file which invokes DOjS with the right parameters to run a given script without showing the editor.

cheers Ilu

I release V1.1.0 yesterday.

• Improved MIDI support
• Added COM port access
• Added LPT port access

Grab the binaries while they are still hot...
https://github.com/SuperIlu/DOjS

Thank you! 🙂👍

New release of DOjS on https://github.com/SuperIlu/DOjS/releases

Version 1.2.0 (Watt is that?)

• Added TCP/IP support through WATT32.
• Fixed bug where text mode was not restored after exiting DOjS
• Added File.GetSize(), File.WriteBytes() and File.ReadBytes()
• Added fixnewlines target to Makefile.
• Updated syntax highlighting file.
• Switched JSDoc documentation to better-docs
• Improved editor
  • Quoted strings are now GREEN
  • The cursor positioning at the end of line is more usable.
  • 50-line mode can now be selected on the command line
  • Fixed CTRL-L/Go to line
• Fixed bugs in p5js compatibility layer
  • endShape() polygon drawing
  • lerpColor()
• Cleaned up startup messages in logfile.
• Re-added PNG loading/writing

New V1.4.0 release of DOjS

TL;DR

• ZIP file access
• Loadable module support
• Raw read/write of HDD/FDD sectors
• cURL/TLS support

https://github.com/SuperIlu/DOjS/releases/tag/v1.40

Version 1.4.0 (The curly conglomerate)

• Replaced loadpng+libpng by alpng to reduce EXE size.
• Added fast integer array class IntArray
• Added ReadInts() and WriteInts() to File, Zip and Socket to speed up data IO.
• Improved type checking for parameters.
• Added cURL and OpenSSL support.
• FIXED: memory leak in editor
• FIXED: editor crashed when deleting selected text
• Added loadable module support during runtime
• IPX, PNG, Allegro3D, COMPort and cURL are loadable modules now

Version 1.3.0 (The ZIPpy serving)

• Added ZIP file access through Zip() class
• Added StringToBytes() and BytesToString()
• Added file name to stack trace for files loaded by Include() and Require()
• Added loading of images, fonts, samples, midi files and scripts from ZIP files
• JSBOOT/ can now be replaced by JSBOOT.ZIP
• Added autostart feature for ZIP files
• Added more fonts from Linux Font Project
• Fixed crash in context help
• Added ReadZIP(), Rename(), MakeDir(), RmDir() and RmFile()
• Internal cleanup and removed some duplicate code
• Fixed bug in DrawArray() and new Bitmap()
• Fixed memory allocation bug where CWSDPMI and MuJS started to use virtual memory because of missing GCs.
• Added raw disk access through RawRead() and RawWrite() (and other functions)
• Fixed problems with the Makefile and filenames which only happened for fresh checkouts on case sensitive file systems.
• Updated build instructions
• Fixed ReadBytes() in socket.c
• Renamed fxGetMemoryTMU() to fxGetMemoryTmu()

New Version 1.5.0 available at https://github.com/SuperIlu/DOjS/releases

Version 1.5.0 (The neuronal necessity)

• Added SQLite module
• Added module for training/running neuronal networks
• Added libcpuid module
• Added NanoSVG module
• Added global variables Width/Height
• Added single parameter version of Color()
• Added Console and EvalChain classes.
• Added perlin noise module
• You can now create single color Bitmaps with new Bitmap(width, height, color)
• FIXED: small fixes for raw disk access.
• FIXED: p5js arc() function is now somewhat useable (was completely broken before).
• FIXED: Updated openssl to 1.1.1k

New DOjS release V1.6.0 on https://github.com/SuperIlu/DOjS/releases

• Added JPEG loading through jpeg module
• Made JSLOG.txt optional and the filename can be changed as well
• Updated libcpuid to v0.5.1
• Removed many compiler warnings and streamlined the make output during build
• Added basic GIF animations loading/rendering through gifanim module
• Added ReadSoundInputInts() which returns the sampled data as IntArray (ReadSoundInput() uses Javascript arrays which are slower)
• Improved CTRL-DEL, CTRL-BS handling with whitespaces
• Added error popup to editor for displaying script errors
• parallelized the build as far as possible
• added Makefile target to create a FreeDOS distribution ZIP
• Added different blend modes which are selected through TransparencyEnabled()
• Added p5js API mapping from blendMode() to TransparencyEnabled()
• Added QR-Code generator from https://github.com/kazuhikoarase/qrcode-generator, see examples/qrcode.js
• Fixed/added some examples
• Improved error handling for missing GLIDE3 drivers

New DOjS release V1.7.0 on https://github.com/SuperIlu/DOjS/releases

• Added FLIC playback (video)
• Added MPEG1 playback (audio/video) using plugin `mpeg1`.
• Added Ogg Vorbis playback plugin `vorbis`.
• Added `rawplay` plugin for raw 16 bit stereo audio data loaded from file system or ZIP.
• Added CTRL-F for 'search' (same as F7)
• Added live coding examples. Install the extension in the `vscode/` directory and run `DOjS -r examples\websvr.js`
• Fixed missing newline in error message.

What an impressive and ambitious project. JavaScript really is everywhere nowadays, huh 😀

Are you running into limitations (for example with garbage collection) because of the lack of threads under DOS?

The running script and the JS-runtime executing it are strictly single threaded. The worst limitation (for me so far) is the limited execution speed because MuJS (the runtime I use) is an interpreter and no JIT...

New DOjS release V1.8.0 on https://github.com/SuperIlu/DOjS/releases

• Added LFN_SUPPORTED global to indicate if long filenames are supported by the current DOS installation.
• Fixed some docs
• Added QOI Image decoder in jsboot/qoi.js. See https://qoiformat.org/
• Improved error reporting in case Setup(), Loop() or Input() are missing when running a script.
• Updated openssl to 1.1.1n
• Updated cURL to 7.80.0
• Added -t command line option to disable TCP/IP (faster startup with a loaded packet driver).
• Improved Console class with basic input handling
• Updated Zip to 0.2.2
• Added ZIPFILE.DELETE and Zip.DeleteFile()
• Improved project structure, DOjS main source is now located in src/, all native libraries in plugins/ and all third party code in 3rdparty/.
• Optimized buildfiles
• Improved IPX remote logging with REMLOG.BAT and EnableRemoteDebug()
• implemented DPM package manager
• A sketch can now query if it is running on DOjS using if (navigator.appName === "DOjS") {

Also: I updated the "little sister" jSH as well. The version is now 0.91: https://github.com/SuperIlu/jSH/releases

• updated openssl to 1.1.1n
• added JSBOOT.ZIP to replace JSBOOT/
• added jpm package manager
• Added LFN_SUPPORTED global to indicate if long filenames are supported by the current DOS installation.
• added cURL plugin