CWritten in
1990First released
Kenneth E. IversonDeveloper
dynamicTyping
GNU General Public License, version 3.0License
What is J written in?
Its runtime is implemented in C (well-documented).
Quick Facts
- Designed by
- Kenneth E. Iverson
- Developer
- Roger Hui
- First released
- 1990
- Typing
- dynamic
- License
- GNU General Public License, version 3.0
- Filename extension
- .ijs
- Website
- www.jsoftware.com
About J
J is a programming language. It is a dynamically typed language. It supports array and functional programming.
J first appeared in 1990 and was designed by Kenneth E. Iverson. Development is led by Roger Hui.
How J is implemented
In the Language Lineage dataset, its runtime is implemented in C.
J in the language family tree
J drew on ideas from APL.
Sources: Wikipedia · Wikidata · Official site
Frequently Asked Questions
What language is J written in?
J is primarily implemented in C. See the implementation section above for details and source references.
What languages influenced J?
J was influenced by APL among others. See the influence section above for the full list.
When was J first released?
J was first released in 1990. It was designed by Kenneth E. Iverson.