Package

internmap

Map and Set with automatic key interning

v2.0.3, 20 Sept 2021ISCESM onlyTypes: None

$ npm install internmap

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 68.1m; +447% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 5 years ago; v2.0.3
GitHub stars: -
Open issues / PRs: - / -
Contributors: -
Commits, last 52 weeks: -

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

68,143,464 downloads last week, 328,546,793 in the last month. The 12-month change of +447% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 06 in total
Latest version: 2.0.3, 20 Sept 20215 years ago
First published: 21 Jan 2021
Last push to GitHub: -
Repository archived: -
Open issues: -
Open pull requests: -
Commits, last 52 weeks: -
Dependents on npm: 37

Major versions

v2 first release 2.0.0, 3 Jun 2021
v1 first release 1.0.0, 21 Jan 2021

Recent releases

Version	Published
2.0.3	20 Sept 2021
2.0.2	18 Sept 2021
2.0.1	5 Jun 2021
2.0.0	3 Jun 2021
1.0.1	10 Mar 2021
1.0.0	21 Jan 2021

Compatibility

Module format: ESM onlyFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: >=12
Runtimes: -
Unpacked size (npm): 10 kB
Dependencies (0): None

Install

npm install internmap

CDN

jsDelivr: 7.5m requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/internmap@2.0.3/
unpkghttps://unpkg.com/internmap@2.0.3/
esm.shhttps://esm.sh/internmap@2.0.3

Sources: npm registry, npm downloads API, jsDelivr. Data fetched 25 Sept 2026.

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