git clone https://github.com/jsoftware/jsource
|#187on PLDB||33Years Old||468Repos|
The J programming language, developed in the early 1990s by Kenneth E. Iverson and Roger Hui, is a synthesis of APL (also by Iverson) and the FP and FL function-level languages created by John Backus. To avoid repeating the APL special-character problem, J uses only the basic ASCII character set, resorting to the use of the dot and colon as inflections to form short words similar to digraphs. Read more on Wikipedia...
echo 'Hello, world!'
#!/opt/local/bin/jc echo 'Hello World' exit ''
NB. Hello World in J 'Hello World' 1!:2(2)
#!/bin/jconsole echo 'Hello, GitHub!' exit ''
3 |. 1 0 1 1 0 0 1 1 1 1 1 NB. rotate 1 0 0 1 1 1 1 1 1 0 1
NB. A comment