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Package

type-of-is

Determine and test types using constructor or {}.toString

v3.5.1, 7 Feb 2017MITCommonJSTypes: None
$ npm install type-of-is

Key numbers

As of 25 Sept 2026
Weekly downloads
113.4k
-14% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
9 years ago
v3.5.1
GitHub stars
47
2 forks
Open issues / PRs
1 / 0
Contributors
-
Commits, last 52 weeks
0

Downloads

Last week 2026-09-15 to 2026-09-21
0100k200k300kSept 2025Mar 2026Sept 2026High 227.9k (20 Jan 2026)Low 106.1k (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.

113,431 downloads last week, 578,423 in the last month. The 12-month change of -14% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
-
Latest version
3.5.1, 7 Feb 20179 years ago
First published
-
Last push to GitHub
7 Feb 20173,516 days before the snapshot
Repository archived
No
Open issues
1
Open pull requests
0
Commits, last 52 weeks
0
Dependents on npm
66

Major versions

-

Recent releases

-

Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
None
Node.js engine range
>=0.10.5
Runtimes
-
Unpacked size (npm)
-
Dependencies (0)
None
npm install type-of-is
  • jsDelivrhttps://cdn.jsdelivr.net/npm/type-of-is@3.5.1/
  • unpkghttps://unpkg.com/type-of-is@3.5.1/
  • esm.shhttps://esm.sh/type-of-is@3.5.1
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): no category.