Jon, We do have a group working on the J wiki, although we are in early stages. The original email in this thread actually came from a discussion that Michal had with the group, since we had been looking at including the a J demo site on the main page of the J wiki.
If you or anyone else is interested in being part of this planning and development we would love to have you involved. Let me know and I will invite you to the zoom call for Thursday December 16th at 7pm Eastern Standard Time. The meetings last for an hour and there are some records of previous discussions here. https://code.jsoftware.com/wiki/Wiki_Development#Minutes_of_Meeting_2021-11-18 Cheers, bob > On Dec 8, 2021, at 16:53, Jon Hough <[email protected]> wrote: > > It would be great to put this on the jsoftware.com website, as a "try j" > feature. Maybe even with a small tutorial. > > If not jsoftware.com itself, it would be good to make a more expansive > github.io page for the same purpose. > > If anyone is interested in doing this, I am very interested in helping. > > Thanks, > Jon > > Get Outlook for Android<https://aka.ms/AAb9ysg> > ________________________________ > From: General <[email protected]> on behalf of Jan-Pieter > Jacobs <[email protected]> > Sent: Thursday, December 9, 2021 7:22:39 AM > To: [email protected] <[email protected]> > Subject: Re: [Jgeneral] j in the browser (wasm / emscripten) > > I'm still using Joe's implementation often and I remember fixing some minor > things in the javascript code, as well as adding a button to load a script > from a directory (all very rudimentary as my JS skills are near > non-existant). If there's interest, I could share my changes. > > Joe's implementation does have (somehow) at least part of the stdlib > installed, but some things have unmet dependencies (I remember having to > fix "names"). > In the JS implementation of the j engine (70x), there are also some strange > bugs (like calendar not working), some odities with matrix inverse as > well, if I remember correctly. > > It would be very handy to have a current J version for promo purposes, as > well as for locked down environments (e.g. corporate devices). It would be > even better than tryapl.org since no data is ever sent over the network, so > it could also be used for working with confidential data. > > Jan-Pieter > > > On Wed, Dec 8, 2021, 22:38 Joe Bogner <[email protected]> wrote: > >> If there is interest or questions, I am happy to help try to answer. I >> intentionally started with the gpl j source as the initial starting point >> in GitHub and commited the changes required at that time with the emscipten >> tool chain. >> >> I used it to play with J on my phone and experimented with possibly >> building a browser app for data analytics. >> >> I ended up going a different direction though with the work I did on microj >> (https://github.com/joebo/microj). I also tried getting that to run with >> blazor in the browser and had some success, but it wasn't good enough for >> production use >> >> >> >> >> >> >> >> On Wed, Dec 8, 2021, 3:13 PM Michal Wallace <[email protected]> >> wrote: >> >>> The topic of compiling J to WASM came up in conversation recently. This >> is >>> the past work in the area I'm aware of: >>> >>> WASM (Web Assembly) is a modern standard for running sandboxed native >> code, >>> especially in web browsers. >>> >>> It evolved out of attempts to transpile C code to a reduced subset of >>> javascript that could be heavily optimized by the developers of >> javascript >>> engines. >>> >>> Anyway, it looks like Joe Bogner had this working through emscripten >>> (c->js/wasm compiler) circa 2014: >>> >>> >> https://code.jsoftware.com/wiki/NYCJUG/2014-12-09#Emscripten_Version_of_J >>> >>> It's still running online, and you can try it here: >>> >>> http://joebo.github.io/j-emscripten/ >>> >>> It looks like the changes necessary to make J7 compile under emscripten >>> were rather minimal: >>> >>> >>> >> https://github.com/joebo/j-emscripten-src/commit/32088fe4f89ac2a13b82e73dffdb756fea2152ab >>> >>> Then again, it only includes some basic parts of j.. .for example, trying >>> to run (4!:1)'' >>> (nl) to see what has been defined results in a `missing _jtnl1` error... >> As >>> far as i can tell, it only includes primitives, not predefined names. >>> >>> So my guess is if someone wanted to put the effort in, it wouldn't be too >>> hard to get this working for j9, but then the trick would be filling in >> the >>> gaps and figuring out how to load the standard library... And then >> probably >>> a lot of design decisions about exactly what API to expose to the host >>> environment (javascript). >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
