Vigia

npm · npm:class-is

class-is active

Enhances a JavaScript class by adding an is<Class> property to compare types between realms.

The latest stable version of class-is is 1.1.0, published on 2018-04-04. Verified by Vigia on 2026-11-12.

Latest stable version1.1.0
Published2018-04-04 08:54:36 UTC
Installnpm install class-is@latest
Requires (engines)none declared
Peer dependencies—
Dist-tagslatest: 1.1.0
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-12 12:56:34 UTC
Sourcesapi.deps.dev, registry.npmjs.org, registry.npmjs.org

Is your project affected?

Check my whole package.jsonGet notified of new versions (Atom)Facts for my AGENTS.md

Free, no signup. Paste your manifest and see what is outdated, deprecated or vulnerable.

Maintenance

Activitydormant
Last stable release2018-04-04 08:54:36 UTC · 3144 days ago
Stable releases in the last 12 months0
Published versions9

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
1.1.02018-04-04 08:54:36 UTC
1.0.02018-03-30 20:12:53 UTC
0.5.12018-03-30 20:12:03 UTC
0.5.02018-03-28 15:03:30 UTC
0.4.02018-03-27 14:37:50 UTC
0.3.12018-03-23 16:05:13 UTC
0.3.02018-03-23 15:35:53 UTC
0.2.12018-03-23 12:15:04 UTC
0.2.02018-03-23 12:10:14 UTC

Showing the 9 most recent of 9 versions. JSON

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to CursorAdd to VS Code★ Star on GitHub

Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

Frequently asked questions

What is the latest version of class-is?

The latest stable version of class-is is 1.1.0, published on 2018-04-04. Verified by Vigia on 2026-11-12.

How do I install the latest version of class-is?

Run npm install class-is@latest. The latest stable version is 1.1.0 (verified 2026-11-12).

Is class-is deprecated?

No. class-is is not marked as deprecated in the registry.

Which Node.js version does class-is require?

class-is 1.1.0 does not declare a Node.js version requirement.

Does class-is 1.1.0 have known vulnerabilities?

No known advisories affect class-is 1.1.0 according to the data Vigia checks.

Is class-is still maintained?

class-is published 0 stable releases in the last 12 months; the most recent was 3144 days ago. Activity: dormant.

Observed changes

No changes observed yet since Vigia started tracking this package.

Related packages

Badges for your README

Show the latest version, maintenance status and deprecation status of this package. Copy the Markdown:

[![version](https://vigia.coredls.cloud/badge/npm/class-is/version.svg)](https://vigia.coredls.cloud/npm/class-is)
[![maintained](https://vigia.coredls.cloud/badge/npm/class-is/maintained.svg)](https://vigia.coredls.cloud/npm/class-is)
[![status](https://vigia.coredls.cloud/badge/npm/class-is/status.svg)](https://vigia.coredls.cloud/npm/class-is)

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/class-is
GET https://vigia.coredls.cloud/v1/packages/npm/class-is/versions/{version}