.cjs
1 claimant
0 primary
1 secondary
secondary-only
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
4.8M
total files
4.1M
first seen 2021–2025 (85.5%)
2024
median year (half its files since)
Case variants in archive: .cjs (4.8M), .CJS (3), .Cjs (3), .CJs (1), .cJS (1) — aggregated above.
Attribution status
This extension is attributed to JavaScript — every claim across all sources (including secondary ones) points to a single language.
Authoritative sources: △ Linguist · secondary △ Pygments · secondary ✗ Wikidata · no claim ✗ Wikipedia · no claim
Claimants (2)
Languages that list
.cjs among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| JavaScript | linguist | secondary |
| JavaScript | pygments | secondary |
SWH-mined examples (0)
No archived examples for .cjs in our local mirror yet.