Gathering detailed insights and metrics for assert
Gathering detailed insights and metrics for assert
Installations
npm install assertDeveloper Guide
BETA
Typescript
No
Module System
CommonJS
Node Version
20.6.0
NPM Version
9.8.1
Languages
1
JavaScript
JavaScript (100%)
Developer
browserify
Download Statistics
Total Downloads
4,171,311,301
Last Day
2,510,728
Last Week
15,411,350
Last Month
73,433,829
Last Year
660,062,199
GitHub Statistics
MIT License
301 Stars
199 Commits
61 Forks
9 Watchers
4 Branches
37 Contributors
Updated on Feb 16, 2025
Maintainers
6
Package Meta Information
Latest Version
2.1.0
Package Id
assert@2.1.0
Unpacked Size
80.16 kB
Size
21.36 kB
File Count
7
NPM Version
9.8.1
Node Version
20.6.0
Published on
Sep 07, 2023
Total Downloads
Cumulative downloads
Total Downloads
4,171,311,301
Last Day
26.7%
2,510,728
Compared to previous day
Last Week
-0.9%
15,411,350
Compared to previous week
Last Month
18.9%
73,433,829
Compared to previous month
Last Year
0.6%
660,062,199
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
assert
The
assertmodule from Node.js, for the browser.
With browserify, simply require('assert') or use the assert global and you will get this module.
The goal is to provide an API that is as functionally identical to the Node.js assert API as possible. Read the official docs for API documentation.
Install
To use this module directly (without browserify), install it as a dependency:
npm install assert
Inconsistencies with Node.js assert
Due to differences between browsers, some error properties such as message and stack will be inconsistent. However the assertion behaviour is as close as possible to Node.js and the same error code will always be used.
Usage with bundlers that don't automatically include polyfills for Node.js APIs
Bundlers like webpack 5 and Vite.js (and possibly others) don't automatically include polyfills for Node.js APIs. Like most packages on npm, this module depends on other Node.js APIs, so it won't work with these bundlers without also including a polyfill for the process Node.js global. You can use this library to polyfill the process global.
Note that this is not a flaw in this package - this package will work without any manual configuration with browserify and webpack 4 and other working bundlers. Unfortunately, some bundlers decided to require an explicit allow-list of all Node.js API specific packages instead of having them work out of the box, hence the incompatibility. See https://github.com/browserify/commonjs-assert/issues/55 for some more context.
Contributing
To contribute, work on the source files. Then build and run the tests against the built files. Be careful to not introduce syntax that will be transpiled down to unsupported syntax. For example, for...of loops will be transpiled to use Symbol.iterator which is unavailable in IE.
Build scripts
npm run build
Builds the project into the build dir.
npm run dev
Watches source files for changes and rebuilds them into the build dir.
npm run test
Builds the source files into the build dir and then runs the tests against the built project.
npm run test:nobuild
Runs the tests against the built project without rebuilding first.
This is useful if you're debugging in the transpiled code and want to re-run the tests without overwriting any changes you may have made.
npm run test:source
Runs the tests against the unbuilt source files.
This will only work on modern Node.js versions.
npm run test:browsers
Run browser tests against the all targets in the cloud.
Requires airtap credentials to be configured on your machine.
npm run test:browsers:local
Run a local browser test server. No airtap configuration required.
When paired with npm run dev any changes you make to the source files will be automatically transpiled and served on the next request to the test server.
License
MIT © Joyent, Inc. and other Node contributors
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
security policy file detected
Details
- Info: security policy file detected: .github/SECURITY.md:1
- Info: Found linked content: .github/SECURITY.md:1
- Info: Found disclosure, vulnerability, and/or timelines in security policy: .github/SECURITY.md:1
- Info: Found text in security policy: .github/SECURITY.md:1
Reason
no binaries found in the repo
Reason
0 existing vulnerabilities detected
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
Found 4/22 approved changesets -- score normalized to 1
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/node-aught.yml:7: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/node-aught.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/node-pretest.yml:7: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/node-pretest.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/node-tens.yml:7: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/node-tens.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/rebase.yml:12: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/rebase.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/rebase.yml:13: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/rebase.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/require-allow-edits.yml:12: update your workflow using https://app.stepsecurity.io/secureworkflow/browserify/commonjs-assert/require-allow-edits.yml/main?enable=pin
- Info: 0 out of 1 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 5 third-party GitHubAction dependencies pinned
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/node-aught.yml:1
- Warn: no topLevel permission defined: .github/workflows/node-pretest.yml:1
- Warn: no topLevel permission defined: .github/workflows/node-tens.yml:1
- Warn: no topLevel permission defined: .github/workflows/rebase.yml:1
- Warn: no topLevel permission defined: .github/workflows/require-allow-edits.yml:1
- Info: no jobLevel write permissions found
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'main'
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
- Warn: 0 commits out of 12 are checked with a SAST tool
Score
4.2
/10
Last Scanned on 2025-07-14
The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.
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