J is an array programming language developed in the late 1980s by Kenneth E. Iverson, the creator of APL, together with Roger Hui, as a successor intended to address the reliance of APL on a non-standard symbol set. J uses only the standard ASCII character set, relying on digraphs of ordinary keyboard characters in place of the special symbols of APL, while preserving and extending the core ideas of concise, array-oriented, function-level programming that APL established.
Facts
First Released SignificanceArray language based primarily on APL that avoids the APL special-character problem by using only the basic ASCII character set 2 Classification
Typing Discipline FAQs
What does the J Dictionary say sets J apart from more conventional languages?
The introduction to the J Dictionary lists among J's distinguishing features: "A mnemonic one- or two-character spelling for primitives."
Connections
Built On
Direction correction: J was designed by Kenneth Iverson as a successor notation to APL, not the reverse.
Follows Typing Discipline
In Field
Source J (programming language), Wikipedia
Invented By
Source Wikidata: J
Additional Source Wikipedia: Kenneth E. IversonInfobox: known_for
Source Wikidata: J
Additional Source Wikipedia: Roger HuiInfobox: known_for
Licensed Under
Sources
1. Wikidata: J
- Wikidata Q383994, class allow-list match (w-wdresolver-0926)
- Wikidata Q383994 P571 (inception)
- Wikidata Q383994 P275 (license)
- Wikidata Q383994 P7078 (typing discipline)
View the Source2. J (programming language), Wikipedia
Second paragraph, first sentence
To avoid repeating the APL special-character problem, J uses only the basic
- In Field: Programming Language Theory, Lead paragraph
In Group: APL and Its Descendants, Lead
The J programming language, developed in the early 1990s by Kenneth E. Iverson and Roger Hui, is an array programming language based primarily on APL (also by Iverson).
View the SourceWikipedia: Roger Hui
Invented By: Roger Hui, Infobox: known_forQuote, Invented By: Roger Hui, Infobox: known_for
Programming language: J
Wikipedia: Kenneth E. Iverson
Wikimedia FoundationInvented By: Kenneth E. Iverson, Infobox: known_forQuote, Invented By: Kenneth E. Iverson, Infobox: known_for
Programming languages: APL, J
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