npm · npm:is-number

is-number active

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

The latest stable version of is-number is 7.0.0, published on 2018-07-04. Verified by Vigia on 2026-11-12.

Maintenance

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

Version history

Showing the 15 most recent of 15 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Upgrade guides for this package

• 6.x → 7.x

Give your AI agent these facts

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

{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Frequently asked questions

Observed changes

No changes observed yet since Vigia started tracking this package.

Related packages

• whatwg-url
• qs
• @babel/parser
• @types/estree
• tr46
• cookie
• eslint-scope
• convert-source-map
• is-glob
• get-stream
• braces
• webidl-conversions

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

For agents

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