npm · npm:flatten

flatten deprecated

Flatten arbitrarily nested arrays into a non-nested list of non-array items. Maintained for legacy compatibility.

The latest stable version of flatten is 1.0.3, published on 2019-10-31. Verified by Vigia on 2026-11-12.

Latest stable version	1.0.3
Published	2019-10-31 02:43:51 UTC
Install	`npm install flatten@latest`
Deprecation	flatten is deprecated in favor of utility frameworks such as lodash.
Requires (engines)	none declared
Peer dependencies	—
Dist-tags	`latest: 1.0.3`
License	MIT
Advisories on latest version	none known
Last verified	2026-11-12 12:08:13 UTC
Sources	api.deps.dev, registry.npmjs.org, registry.npmjs.org

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Maintenance

Activity	dormant
Last stable release	2019-10-31 02:43:51 UTC · 2569 days ago
Stable releases in the last 12 months	0
Published versions	6

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

Version history

Version	Published
`1.0.3` withdrawn	2019-10-31 02:43:51 UTC
`1.0.2` withdrawn	2016-01-20 01:00:17 UTC
`1.0.1` withdrawn	2016-01-20 00:56:04 UTC
`1.0.0` withdrawn	2016-01-20 00:45:01 UTC
`0.0.1` withdrawn	2012-06-28 02:40:18 UTC
`0.0.0` withdrawn	2012-06-28 02:21:27 UTC

Showing the 6 most recent of 6 versions. JSON

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Frequently asked questions

What is the latest version of flatten?

The latest stable version of flatten is 1.0.3, published on 2019-10-31. Verified by Vigia on 2026-11-12.

How do I install the latest version of flatten?

Run npm install flatten@latest. The latest stable version is 1.0.3 (verified 2026-11-12).

Is flatten deprecated?

Yes. The registry marks flatten as deprecated. Message from the maintainers: "flatten is deprecated in favor of utility frameworks such as lodash."

Which Node.js version does flatten require?

flatten 1.0.3 does not declare a Node.js version requirement.

Does flatten 1.0.3 have known vulnerabilities?

No known advisories affect flatten 1.0.3 according to the data Vigia checks.

Is flatten still maintained?

flatten published 0 stable releases in the last 12 months; the most recent was 2569 days ago. Activity: dormant.

Observed changes

No changes observed yet since Vigia started tracking this package.

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