I'm working on modernizing Rosetta Code's infrastructure. Starting with communications. Please accept this time-limited open invite to RC's Slack.. --Michael Mol (talk) 20:59, 30 May 2020 (UTC)

Hello world/Standard error/Esoteric

From Rosetta Code

Gridscript[edit]

#HELLO WORLD- STDERROR.

@width 3
@height 1

(1,1):START
(3,1):WARN "Goodbye, World!"