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array.prototype.findlastindex

An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

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

Array.prototype.findLastIndexfindfindLastfindLastIndexarrayESnextshimpolyfilllastes-shim API

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
dependencies unvetted-dep:define-properties AI (dependencies): define-properties is a well-known es-shims utility maintained by the same author (ljharb); not a security risk for this package family. ai
provenance no-provenance AI (provenance): ljharb's packages consistently lack Sigstore provenance; this is a known pattern for this trusted publisher and not a security concern. ai

Versions (showing 1 of 1)

Version Deps Published
1.2.6 7 / 18