Package

custom-error-instance

Create custom JavaScript errors that also match instanceof.

v2.1.2, 27 Apr 2020ISC-Types: -

$ npm install custom-error-instance

npm Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 1.2m; +285% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 6 years ago; v2.1.2
GitHub stars: -
Open issues / PRs: - / -
Contributors: -
Commits, last 52 weeks: -

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

1,229,617 downloads last week, 5,822,780 in the last month. The 12-month change of +285% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 09 in total
Latest version: 2.1.2, 27 Apr 20206 years ago
First published: 12 Jan 2016
Last push to GitHub: -
Repository archived: -
Open issues: -
Open pull requests: -
Commits, last 52 weeks: -
Dependents on npm: 17

Major versions

v2 first release 2.0.0, 20 Jan 2016
v1 first release 1.0.0, 12 Jan 2016

Recent releases

Version	Published
2.1.2	27 Apr 2020
2.1.1	21 Jan 2016
2.1.0	21 Jan 2016
2.0.2	20 Jan 2016
2.0.1	20 Jan 2016
2.0.0	20 Jan 2016
1.1.1	13 Jan 2016
1.1.0	13 Jan 2016
1.0.0	12 Jan 2016

Compatibility

Module format: -Not determined from package.json
TypeScript types: -
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): -
Dependencies (0): None

Install

npm install custom-error-instance

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/custom-error-instance@2.1.2/
unpkghttps://unpkg.com/custom-error-instance@2.1.2/
esm.shhttps://esm.sh/custom-error-instance@2.1.2

Sources: npm registry, npm downloads API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): completeness 0.5 < 0.6 (missing: github_owner, stars, module_type, category); GitHub data not fetched yet; no category.