Package

dup

Initialize an array of arrays to a constant

v1.0.0, 28 Apr 2014MITCommonJSTypes: None

$ npm install dup

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 557.6k; +43% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 12 years ago; v1.0.0
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.

557,610 downloads last week, 2,396,808 in the last month. The 12-month change of +43% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 02 in total
Latest version: 1.0.0, 28 Apr 201412 years ago
First published: 10 Apr 2013
Last push to GitHub: -
Repository archived: -
Open issues: -
Open pull requests: -
Commits, last 52 weeks: -
Dependents on npm: -

Major versions

v1 first release 1.0.0, 28 Apr 2014
v0 first release 0.0.0, 10 Apr 2013

Recent releases

Version	Published
1.0.0	28 Apr 2014
0.0.0	10 Apr 2013

Compatibility

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

Install

npm install dup

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/dup@1.0.0/
unpkghttps://unpkg.com/dup@1.0.0/
esm.shhttps://esm.sh/dup@1.0.0

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

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