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array.prototype.flatmap active

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

The latest stable version of array.prototype.flatmap is 1.3.3, published on 2024-12-16. Verified by Vigia on 2026-11-12.

Latest stable version1.3.3
Published2024-12-16 00:45:39 UTC
Installnpm install array.prototype.flatmap@latest
Requires (engines){"node":">= 0.4"}
Peer dependencies—
Dist-tagslatest: 1.3.3
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-12 13:08:34 UTC
Sourcesapi.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activitydormant
Last stable release2024-12-16 00:45:39 UTC · 696 days ago
Stable releases in the last 12 months0
Published versions14

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
1.3.32024-12-16 00:45:39 UTC
1.3.22023-09-07 04:07:00 UTC
1.3.12022-11-03 05:39:42 UTC
1.3.02022-04-11 23:48:21 UTC
1.2.52021-10-01 20:27:51 UTC
1.2.42020-11-18 10:46:35 UTC
1.2.32019-12-12 16:51:27 UTC
1.2.22019-10-11 04:47:12 UTC
1.2.12018-02-24 07:43:41 UTC
1.2.02018-01-19 02:03:39 UTC
1.1.12017-11-29 23:18:18 UTC
1.1.02017-10-04 07:42:22 UTC
1.0.12017-10-02 09:48:37 UTC
1.0.02017-10-01 09:00:52 UTC

Showing the 14 most recent of 14 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

RuntimeNewest compatible version
node 161.3.3
node 181.3.3
node 201.3.3
node 221.3.3
node 241.3.3

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Frequently asked questions

What is the latest version of array.prototype.flatmap?

The latest stable version of array.prototype.flatmap is 1.3.3, published on 2024-12-16. Verified by Vigia on 2026-11-12.

How do I install the latest version of array.prototype.flatmap?

Run npm install array.prototype.flatmap@latest. The latest stable version is 1.3.3 (verified 2026-11-12).

Is array.prototype.flatmap deprecated?

No. array.prototype.flatmap is not marked as deprecated in the registry.

Which Node.js version does array.prototype.flatmap require?

array.prototype.flatmap 1.3.3 declares this requirement: {"node":">= 0.4"}.

Does array.prototype.flatmap 1.3.3 have known vulnerabilities?

No known advisories affect array.prototype.flatmap 1.3.3 according to the data Vigia checks.

Is array.prototype.flatmap still maintained?

array.prototype.flatmap published 0 stable releases in the last 12 months; the most recent was 696 days ago. Activity: dormant.

Observed changes

No changes observed yet since Vigia started tracking this package.

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