To try this APL, go to:
   https://plj541.github.io/APL.js/

Links to the source for the APL.js language as well as the additional APL.js.User workspaces and files are available in:
   https://plj541.github.io/Tools/APL.js.html

A more complete description is at:
   https://plj541.github.io/APL.js/Help/Notes.html