Ohp4boo4

3 ms·

1. 1.▲
   by Ohp4boo4 10y ago

   Seems you're running Kdb+ (also known as "Q" or "K4"). You need K in the older K2 or K3 version to run the above. Kx stopped selling K2/K3 so they are basically no longer available.
2. 2.▲
   by Ohp4boo4 10y ago

   The author unfortunately cites the rather worthless Redmonk language expressiveness writeup, which has since been rightly berated for its lack in methodological rigour. (HN thread on the Redmonk writeup: https://news.ycombinator.
3. 3.▲
   by Ohp4boo4 10y ago

   Your Tcl/Tk version is duly appreciated in the original post as well.
4. 4.▲
   by Ohp4boo4 10y ago

   Glad to oblige, for K: S..t:".[`D;(;);{. y};S[]];S[.;`f]:9$D[]" S:D:.+(`$'_ci 97+!26;26 99#,"") `show$`S This K (K2/K3) version of a simple spreadsheet (so demoing GUI, "reactiveness"