Using command-line arguments in J

Question

I know that ARGV represents the arguments. Can I type arguments after the filename in jqt.exe or does that only work in jconsole.exe. Executing the code regarding ARGV given in the J docs crashes J on my Win 10. An example would be welcome. I tried out 0 ". > ,. 2 }. ARGV from an earlier question on SO, but am not sure how to make it work.

Answer 1

Both jqt and jconsole read the command line arguments and box them:

jqt script.ijs arg1 arg2


  ARGV
┌───┬──────────┬────┬────┐
│jqt│script.ijs│arg1│arg2│
└───┴──────────┴────┴────┘


  2}. ARGV
┌────┬────┐
│arg1│arg2│
└────┴────┘

  ] x =: > 3 { ARGV
arg2

example script:

$ cat script.ijs
x =: ". every 2 }. ARGV                                                                                                                
echo +/ x 

$ jqt script.ijs 1 2 3
6