J is a programming language recognized by GitHub Linguist and used with .ijs.
Quick facts
What is J
J is a programming language recognized by GitHub Linguist and used with .ijs.
GitHub Linguist classifies J as a programming language, typically using extensions such as .ijs.
File extensions:
Related languages
Frequently asked questions
J is a programming language recognized by GitHub Linguist and used with .ijs.
Common extensions include .ijs.
Sources & standards
Updated 2026-08-18
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