Hi Meino, I wouldn't worry too much about changing syntax; most of it remained the same, except for cosmetic changes (e.g. not using x. and y. for arguments names but x, y) and behind-the-scenes implementation aspects (faster, more special code, in-place operations). Those generally don't change much when programming.
I liked Learning J a lot as well when learning, as well as JforC. I would just use those, and try out what you read, and check the release notes when things would not work out as expected, where non-backward compatible changes are flagged as incompatible changes. NuVoc is the de-facto documentation that should be up to date with the current implementation. That said, although recently a lot has been happening for J, in my opinion, most of the (reasonably recent) material remains valid. Good luck, Jan-Pieter On Mon, 4 Jul 2022, 14:45 , <[email protected]> wrote: > Hi, > > on the internet (some reddit post it was I think) I found a very nice > looking "Reference Card For J", which refers to J 602. > > There are some other tutorials, books and such, which are based on previous > versions of J. > > At the current point of my knowledge about J (read: bloody newbie) I > cannot estimate, whether it makes sense to learn from such sources or > not - I want to avoid to "unlearn" things later. > > Especially this > https://www.learningj.com/book.htm#toc > book I like very muchm since it shows things the way I normally like to > learn new things. > > Question extracted from all these lengthy words is: > What way of evolving J does ? Adding more things and keeping > everything backward compatible (so I need only to add new things later) > or "super high dynamic" :) which means: Every day the syntax is totally > changed and verbs older than a month will be thrown out and replaced by > totally diffent verbs...and I have to unlearn everything in a 14 day > cycle... :) ;) 8) > (I exaggerate here just for fun! ) > > Cheers! > Meino > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
