array.prototype.flat

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

array.prototype.flat@1.3.3 was published on 2024-12-15. Its manifest declares 4 runtime dependencies and 0 peer requirements. Bundled type declarations are not declared in the inspected metadata. The declared Node.js requirement is >= 0.4.

All array.prototype.flat versions · Permanent reference to 1.3.3

Package specifications

Version1.3.3
License declarationMIT
Published2024-12-15T22:32:44.433Z
Node.js requirement>= 0.4
Type declarationsNot declared
Runtime dependency count4
Peer requirement count0
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution size19.25 KiB
Published file count17
Package typeNot declared
ES module entryNot declared
Default entryindex.js
Side effects declarationNot declared
Direct advisories0
Resolved graph dependencies93
Repository stars31
Repository forks8

Install array.prototype.flat 1.3.3

npm install array.prototype.flat@1.3.3
pnpm add array.prototype.flat@1.3.3
yarn add array.prototype.flat@1.3.3

Runtime dependencies

Peer requirements

  • None declared

Optional dependencies

  • None declared

Resolved dependency graph

This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.

How to interpret the specifications

Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.

Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.

OpenSSF repository checks

Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.

Code-Review0/10 — Found 0/30 approved changesets -- score normalized to 0
Dangerous-Workflow10/10 — no dangerous workflow patterns detected
Binary-Artifacts10/10 — no binaries found in the repo
Maintained0/10 — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Pinned-Dependencies0/10 — dependency not pinned by hash detected -- score normalized to 0
SAST0/10 — no SAST tool detected
Token-Permissions0/10 — detected GitHub workflow tokens with excessive permissions
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
Fuzzing0/10 — project is not fuzzed
License10/10 — license file detected
Security-Policy10/10 — security policy file detected

Evidence and freshness