Key numbers
As of 25 Sept 2026
- Weekly downloads
- 119m
- +83% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 1
- Direct, from package.json
- Last release
- 10 years ago
- v1.4.0
- GitHub stars
- 222
- 27 forks
- Open issues / PRs
- 2 / 2
- Contributors
- 7
- Commits, last 52 weeks
- 1
Downloads
Last week 2026-09-15 to 2026-09-21
119,026,637 downloads last week, 524,885,578 in the last month. The 12-month change of +83% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 07 in total
- Latest version
- 1.4.0, 6 Sept 201610 years ago
- First published
- 14 Aug 2012
- Last push to GitHub
- 25 Oct 2025334 days before the snapshot
- Repository archived
- No
- Open issues
- 2
- Open pull requests
- 2
- Commits, last 52 weeks
- 1
- Dependents on npm
- 3,703
Major versions
- v1 first release 1.1.1, 14 Aug 2012
Recent releases
| Version | Published |
|---|---|
| 1.4.0 | 6 Sept 2016 |
| 1.3.3 | 20 Nov 2015 |
| 1.3.2 | 4 May 2015 |
| 1.3.1 | 18 Sept 2014 |
| 1.3.0 | 24 Oct 2013 |
| 1.2.0 | 12 Aug 2013 |
| 1.1.1 | 14 Aug 2012 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- -
- Dependencies (1)
wrappy
npm install once- jsDelivr
https://cdn.jsdelivr.net/npm/once@1.4.0/ - unpkg
https://unpkg.com/once@1.4.0/ - esm.sh
https://esm.sh/once@1.4.0
Indexability: Not indexed (discovery only): no category.