Package Health Score

74 / 100

security
No known security issues
popularity
Influential project
maintenance
Sustainable
community
Sustainable

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Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

Version				Vulnerabilities	License Risk
2.2.4	\|	03/2018	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
2.1.3	\|	11/2015		0 C 0 H 0 M 0 L	0 H 0 M 0 L
1.0.2	\|	09/2014		0 C 0 H 0 M 0 L	0 H 0 M 0 L

License

MIT

Security Policy

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Popularity

Influential project

Weekly Downloads (2,950,297)

GitHub Stars: 1.22K
Forks: 70
Contributors: 20

Direct Usage Popularity

The npm package invariant receives a total of 2,950,297 downloads a week. As such, we scored invariant popularity level to be Influential project.

Based on project statistics from the GitHub repository for the npm package invariant, we found that it has been starred 1,219 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Sustainable

Readme.md: Yes
Contributing.md: No
Code of Conduct: No
Contributors: 20
Funding: No

With more than 10 contributors for the invariant repository, this is possibly a sign for a growing and inviting community.

We found a way for you to contribute to the project! Looks like invariant is missing a Code of Conduct.

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Maintenance

Sustainable

Commit Frequency

No Recent Commits

Open Issues: 13
Open PR: 3
Last Release: 7 years ago
Last Commit: 4 years ago

Further analysis of the maintenance status of invariant based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Sustainable.

An important project maintenance signal to consider for invariant is that it hasn't seen any new versions released to npm in the past 12 months, and could be considered as a discontinued project, or that which receives low attention from its maintainers.

In the past month we didn't find any pull request activity or change in issues status has been detected for the GitHub repository.

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Package

Node.js Compatibility: not defined

Age: 10 years
Dependencies: 1 Direct
Versions: 14
Install Size: 7.64 kB
Dist-tags: 1
# of Files: 7
Maintainers: 3
TS Typings: Yes

invariant has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Not sure how to use invariant?

To help you get started, we've collected the most common ways that invariant is being used within popular public projects.

lionng429 / react-file-uploader / src / UploadManager.js View on Github

componentDidMount() {
    // eslint-disable-next-line react/prop-types
    if (this.props.uploadHeader) {
      // eslint-disable-next-line no-console
      console.warn('`props.uploadHeader` is DEPRECATED. Please use `props.uploadHeaderHandler` instead.');
    }

    // eslint-disable-next-line react/prop-types
    if (this.props.formDataParser) {
      // eslint-disable-next-line no-console
      console.warn('`props.formDataParser` is DEPRECATED. Please use `props.uploadDataHandler` instead.');
    }

    invariant(
      !!this.props.uploadUrl,
      'Upload end point must be provided to upload files'
    );

    invariant(
      !!this.props.onUploadEnd,
      'onUploadEnd function must be provided'
    );
  }

View more ways to use invariant

invariant

A mirror of Facebook's invariant (e.g. React, flux).

A way to provide descriptive errors in development but generic errors in production.

Install

With npm do:

npm install invariant

`invariant(condition, message)`

var invariant = require('invariant');

invariant(someTruthyVal, 'This will not throw');
// No errors

invariant(someFalseyVal, 'This will throw an error with this message');
// Error: Invariant Violation: This will throw an error with this message

Note: When process.env.NODE_ENV is not production, the message is required. If omitted, invariant will throw regardless of the truthiness of the condition. When process.env.NODE_ENV is production, the message is optional – so they can be minified away.

Browser

When used with browserify, it'll use browser.js (instead of invariant.js) and the envify transform will inline the value of process.env.NODE_ENV.

Node

The node version is optimized around the performance implications of accessing process.env. The value of process.env.NODE_ENV is cached, and repeatedly used instead of reading process.env. See Server rendering is slower with npm react #812

invariant dependencies

loose-envify

invariant development dependencies

browserify flow-bin tap

FAQs

What is invariant?

invariant. Visit Snyk Advisor to see a full health score report for invariant, including popularity, security, maintenance & community analysis.

Is invariant popular?

The npm package invariant receives a total of 2,950,297 weekly downloads. As such, invariant popularity was classified as an influential project. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is invariant well maintained?

We found indications that invariant maintenance is sustainable demonstrating some project activity. We saw a total of 20 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is invariant safe to use?

The npm package invariant was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 12 November-2024, at 03:30 (UTC).

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invariant

invariant For more information about how to use this package see README

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Security

Security and license risk for significant versions

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Popularity

Weekly Downloads (2,950,297)

Direct Usage Popularity

Community

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Maintenance

Commit Frequency

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Package

Not sure how to use invariant?

invariant

Install

`invariant(condition, message)`

Browser

Node

invariant dependencies

invariant development dependencies

FAQs

What is invariant?

Is invariant popular?

Is invariant well maintained?

Is invariant safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Fix identified vulnerabilities

Monitor for new issues

Package Health Score

Explore Similar Packages

Security and license risk for significant versions

Is your project affected by vulnerabilities?

Weekly Downloads (2,950,297)

Direct Usage Popularity

Embed Package Health Score Badge

Commit Frequency

Keep your project healthy

Check your package.json

Snyk Vulnerability Scanner

Not sure how to use invariant?

invariant

Install

invariant(condition, message)

Browser

Node

invariant dependencies

invariant development dependencies

FAQs

What is invariant?

Is invariant popular?

Is invariant well maintained?

Is invariant safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

Fix identified vulnerabilities

Monitor for new issues

`invariant(condition, message)`