J
J is an actively used programming language created in 1990. 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...
| 30Years Old | 857Users | ?Jobs |
- J ranks in the top 5% of languages
- the J website
- the J wikipedia page
- J first appeared in 1990
- J was created by Kenneth E. Iverson and Roger Hui
- file extensions for J include ijs
- tryitonline has an online J repl
- See also: linux, apl, fp, fl, numpy, supercollider, ascii, unix, sql, c, unicode, k, q
- Have a question about J not answered here? Email me and let me know how I can help.
Example code from the Hello World Collection:
NB. Hello World in J 'Hello World' 1!:2(2)
Example code from Linguist:
#!/bin/jconsole echo 'Hello, GitHub!' exit ''
Example code from Wikipedia:
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
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Last updated February 18th, 2020