is-regex
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
1
Versions
MIT
License
No
Install Scripts
Missing
Provenance
Supply chain provenance
Status for the latest visible version.
No SLSA provenance
npm registry signatures
gitHead linked
Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.
Maintainers
ljharb
Keywords
regexregexpisregular expressionregularexpression
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| dependencies | unvetted-dep:gopd | AI (dependencies): gopd is a legitimate ljharb/inspect-js utility (Get Own Property Descriptor); stable dependency in this ecosystem, not a security risk. | ai | |
| provenance | no-provenance | AI (provenance): ljharb is a highly trusted publisher; lack of Sigstore provenance is common and not a risk signal for this package. | ai |
Versions (showing 1 of 1)
| Version | Deps | Published |
|---|---|---|
| 1.2.1 | 4 / 18 |