Package
core-util-is
The `util.is*` functions introduced in Node v0.12.
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 80.1m
- +53% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 5 years ago
- v1.0.3
- GitHub stars
- 101
- 20 forks
- Open issues / PRs
- 4 / 0
- Contributors
- 6
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
80,118,048 downloads last week, 365,383,467 in the last month. The 12-month change of +53% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 04 in total
- Latest version
- 1.0.3, 31 Aug 20215 years ago
- First published
- 26 Aug 2013
- Last push to GitHub
- 25 Nov 2025304 days before the snapshot
- Repository archived
- No
- Open issues
- 4
- Open pull requests
- 0
- Commits, last 52 weeks
- 0
- Dependents on npm
- 1,731
Major versions
- v1 first release 1.0.0, 26 Aug 2013
Recent releases
| Version | Published |
|---|---|
| 1.0.3 | 31 Aug 2021 |
| 1.0.2 | 20 Nov 2015 |
| 1.0.1 | 8 Jan 2014 |
| 1.0.0 | 26 Aug 2013 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 4.9 kB
- Dependencies (0)
- None
npm install core-util-is- jsDelivr
https://cdn.jsdelivr.net/npm/core-util-is@1.0.3/ - unpkg
https://unpkg.com/core-util-is@1.0.3/ - esm.sh
https://esm.sh/core-util-is@1.0.3
Indexability: Indexed.