Package

assert-err

assertion library that throws user-specified error types (accepts error class and message)

v1.1.0, 13 Sept 2016MITCommonJSTypes: None

$ npm install assert-err

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 3.7k; -46% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 2; Direct, from package.json
Last release: 10 years ago; v1.1.0
GitHub stars: 1; 0 forks
Open issues / PRs: 0 / 1
Contributors: -
Commits, last 52 weeks: 0

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.

3,652 downloads last week, 15,672 in the last month. The 12-month change of -46% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 1.1.0, 13 Sept 201610 years ago
First published: -
Last push to GitHub: 8 Jan 20173,546 days before the snapshot
Repository archived: No
Open issues: 0
Open pull requests: 1
Commits, last 52 weeks: 0
Dependents on npm: 14

Major versions

Recent releases

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): -
Dependencies (2): object-assignescape-string-regexp

Install

npm install assert-err

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/assert-err@1.1.0/
unpkghttps://unpkg.com/assert-err@1.1.0/
esm.shhttps://esm.sh/assert-err@1.1.0

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

Indexability: Not indexed (discovery only): downloads_week 3652 < 10000; no category.