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seamless-immutable

Immutable data structures for JavaScript which are backwards-compatible with normal JS Arrays and Objects.

v7.1.4, 31 Aug 2018BSD-3-ClauseCommonJSTypes: None
$ npm install seamless-immutable
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Key numbers

As of 25 Sept 2026
Weekly downloads
314.2k
-13% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
8 years ago
v7.1.4
GitHub stars
-
Open issues / PRs
- / -
Contributors
-
Commits, last 52 weeks
-

Downloads

Last week 2026-09-15 to 2026-09-21
0200k400k600kSept 2025Mar 2026Sept 2026High 505.3k (26 May 2026)Low 151.7k (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

314,239 downloads last week, 1,448,678 in the last month. The 12-month change of -13% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
053 in total
Latest version
7.1.4, 31 Aug 20188 years ago
First published
24 Oct 2014
Last push to GitHub
-
Repository archived
-
Open issues
-
Open pull requests
-
Commits, last 52 weeks
-
Dependents on npm
-

Major versions

  1. v7 first release 7.0.0, 11 Dec 2016
  2. v6 first release 6.0.0, 15 Apr 2016
  3. v5 first release 5.0.0, 9 Jan 2016
  4. v4 first release 4.0.0, 23 Sept 2015
  5. v3 first release 3.0.0, 8 Aug 2015
  6. v2 first release 2.0.0, 11 Mar 2015
  7. v1 first release 1.0.0, 1 Nov 2014
  8. v0 first release 0.1.0, 24 Oct 2014

Recent releases

VersionPublished
7.1.431 Aug 2018
7.1.331 Jan 2018
7.1.21 Apr 2017
7.1.113 Mar 2017
7.1.013 Mar 2017
7.0.118 Dec 2016
7.0.011 Dec 2016
6.3.017 Oct 2016
6.2.017 Oct 2016
6.1.412 Oct 2016
6.1.330 Sept 2016
6.1.230 Sept 2016
6.1.123 Jun 2016
6.1.029 Apr 2016

Compatibility

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
85 kB
Dependencies (0)
None

Install

npm install seamless-immutable

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/seamless-immutable@7.1.4/
  • unpkghttps://unpkg.com/seamless-immutable@7.1.4/
  • esm.shhttps://esm.sh/seamless-immutable@7.1.4
Sources: npm registry, npm downloads API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): GitHub data not fetched yet; no category.