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Gathering detailed insights and metrics for is-nan

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Gathering detailed insights and metrics for is-nan

is-nan - 1.3.2 | npmpackage.info

is-nan

ES6-compliant shim for Number.isNaN - the global isNaN returns false positives.

1.3.2

MIT

JavaScript

4.4

Installations

npm install is-nan

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Min. Node Version

>= 0.4

Node Version

14.15.3

NPM Version

6.14.9 Pull Requests

Open

0

Total

24

Closed

9

Merged

15

Issues

Open

1

Total

14

Closed

13

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

es-shims

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

12 Stars

137 Commits

6 Forks

4 Watchers

1 Branches

2 Contributors

Updated on Jun 14, 2025

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 2 Contributors

Package Meta Information

Latest Version

1.3.2

Package Id

is-nan@1.3.2

Size

4.40 kB

NPM Version

6.14.9

Node Version

14.15.3

Published on

Dec 24, 2020

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

call-bind define-properties

Dev Dependencies

@es-shims/api @ljharb/eslint-config aud es5-shim eslint functions-have-names nyc safe-publish-latest tape

is-nan

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Example

1Number.isNaN = require('is-nan');
2var assert = require('assert');
3
4assert.notOk(Number.isNaN(undefined));
5assert.notOk(Number.isNaN(null));
6assert.notOk(Number.isNaN(false));
7assert.notOk(Number.isNaN(true));
8assert.notOk(Number.isNaN(0));
9assert.notOk(Number.isNaN(42));
10assert.notOk(Number.isNaN(Infinity));
11assert.notOk(Number.isNaN(-Infinity));
12assert.notOk(Number.isNaN('foo'));
13assert.notOk(Number.isNaN(function () {}));
14assert.notOk(Number.isNaN([]));
15assert.notOk(Number.isNaN({}));
16
17assert.ok(Number.isNaN(NaN));

Tests

Simply clone the repo, npm install, and run npm test

No vulnerabilities found.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

License

Determines if the project has defined a license.

9

Security-Policy

Determines if the project has published a security policy.

0

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

Maintained

Determines if the project is "actively maintained".

0

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Fuzzing

Determines if the project uses fuzzing.

0

SAST

Determines if the project uses static code analysis.

Score

4.4

/10

Last Scanned on 2025-07-07

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