What is J written in?

Year 1990 Paradigm array, functional Typing dynamic
Its runtime is implemented in C (well-documented).

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Runtime Implementation

LanguageConfidenceNotesSource
C 95% J interpreter written in C by Ken Iverson and Roger Hui Source

Influenced By

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.

Evidence Sources

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