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check-types

A little library for asserting types and values, with zero dependencies.

v11.2.3, 7 Sept 2023MITCommonJSTypes: None
$ npm install check-types
npmHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
5.2m
-2% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
3 years ago
v11.2.3
GitHub stars
-
Open issues / PRs
- / -
Contributors
-
Commits, last 52 weeks
-

Downloads

Last week 2026-09-15 to 2026-09-21
02m4m6mSept 2025Mar 2026Sept 2026High 5.8m (28 Apr 2026)Low 2.4m (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

5,240,214 downloads last week, 19,223,851 in the last month. The 12-month change of -2% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months
090 in total
Latest version
11.2.3, 7 Sept 20233 years ago
First published
7 Jul 2012
Last push to GitHub
-
Repository archived
-
Open issues
-
Open pull requests
-
Commits, last 52 weeks
-
Dependents on npm
803

Major versions

  1. v11 first release 11.0.0, 1 Dec 2019
  2. v10 first release 10.0.0, 18 Aug 2019
  3. v9 first release 9.0.0, 18 Jul 2019
  4. v8 first release 8.0.0, 4 Feb 2019
  5. v7 first release 7.0.0, 6 May 2016
  6. v6 first release 6.0.0, 17 Jan 2016
  7. v5 first release 5.0.0, 29 Nov 2015
  8. v4 first release 4.0.0, 4 Oct 2015
  9. v3 first release 3.0.0, 7 Mar 2015
  10. v2 first release 2.0.0, 14 Dec 2014
  11. v1 first release 1.0.0, 27 Oct 2013
  12. v0 first release 0.1.0, 7 Jul 2012

Recent releases

VersionPublished
11.2.37 Sept 2023
11.2.220 Nov 2022
11.2.120 Nov 2022
11.2.020 Nov 2022
11.1.219 Jan 2020
11.1.123 Dec 2019
11.1.023 Dec 2019
11.0.01 Dec 2019
10.1.221 Oct 2019
10.1.116 Oct 2019
10.1.015 Oct 2019
10.0.018 Aug 2019
9.0.119 Jul 2019
9.0.018 Jul 2019

Compatibility

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

Install

npm install check-types

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/check-types@11.2.3/
  • unpkghttps://unpkg.com/check-types@11.2.3/
  • esm.shhttps://esm.sh/check-types@11.2.3
Sources: npm registry, npm downloads API. Data fetched 25 Sept 2026.

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