Package
is-async-function
Determine if a function is a native async function.
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 57.2m
- +107% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 5
- Direct, from package.json
- Last release
- 1 year ago
- v2.1.1
- GitHub stars
- 18
- 3 forks
- Open issues / PRs
- 1 / 0
- Contributors
- 1
- Commits, last 52 weeks
- 1
Downloads
Last week 2026-09-15 to 2026-09-21
57,179,974 downloads last week, 280,102,457 in the last month. The 12-month change of +107% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 017 in total
- Latest version
- 2.1.1, 23 Jan 20251 year ago
- First published
- 5 Jun 2015
- Last push to GitHub
- 30 Dec 2025269 days before the snapshot
- Repository archived
- No
- Open issues
- 1
- Open pull requests
- 0
- Commits, last 52 weeks
- 1
- Dependents on npm
- 584
Major versions
- v2 first release 2.0.0, 12 Apr 2022
- v1 first release 1.0.0, 5 Jun 2015
- v0 first release 0.0.0, 5 Jun 2015
Recent releases
| Version | Published |
|---|---|
| 2.1.1 | 23 Jan 2025 |
| 2.1.0 | 2 Jan 2025 |
| 2.0.0 | 12 Apr 2022 |
| 1.3.0 | 15 Jan 2020 |
| 1.2.4 | 15 Jan 2020 |
| 1.2.3 | 11 Mar 2017 |
| 1.2.2 | 29 Oct 2016 |
| 1.2.1 | 27 Oct 2016 |
| 1.2.0 | 27 Oct 2016 |
| 1.1.5 | 21 Sept 2016 |
| 1.1.4 | 21 Sept 2016 |
| 1.1.3 | 21 Apr 2016 |
| 1.1.2 | 18 Mar 2016 |
| 1.1.1 | 18 Mar 2016 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- Bundled
- Node.js engine range
- >= 0.4
- Runtimes
- -
- Unpacked size (npm)
- 23 kB
- Dependencies (5)
get-protocall-boundasync-functionhas-tostringtagsafe-regex-test
npm install is-async-function- jsDelivr
https://cdn.jsdelivr.net/npm/is-async-function@2.1.1/ - unpkg
https://unpkg.com/is-async-function@2.1.1/ - esm.sh
https://esm.sh/is-async-function@2.1.1
Indexability: Indexed.