npmpackage.info

@stdlib/assert-is-nan

Test if a value is NaN.

0.2.2

Apache-2.0

JavaScript

Installations

npm install @stdlib/assert-is-nan

Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Developer

stdlib-js

Developer Guide

BETA

Module System

CommonJS

Min. Node Version

>=0.10.0

Typescript Support

Yes

Node Version

16.20.2

NPM Version

8.19.4 Statistics

2 Stars

71 Commits

4 Watching

5 Branches

10 Contributors

Updated on 01 Nov 2024

Languages

JavaScript (100%)

Total Downloads

Cumulative downloads

Total Downloads

7,269,975

Last day

7.1%

12,542

Compared to previous day

Last week

14%

72,384

Compared to previous week

Last month

1.8%

302,828

Compared to previous month

Last year

62.9%

3,845,659

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

@stdlib/assert-is-number @stdlib/math-base-assert-is-nan @stdlib/utils-define-nonenumerable-read-only-property

Versions

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

isNaN

Test if a value is NaN.

Installation

1npm install @stdlib/assert-is-nan

Alternatively,

To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README).
If you are using Deno, visit the deno branch (see README for usage intructions).
For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the umd branch (see README).

The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

1var isnan = require( '@stdlib/assert-is-nan' );

isnan( value )

Tests if a value is NaN.

1var Number = require( '@stdlib/number-ctor' );
2
3var bool = isnan( NaN );
4// returns true
5
6bool = isnan( new Number( NaN ) );
7// returns true
8
9bool = isnan( 3.14 );
10// returns false
11
12bool = isnan( null );
13// returns false

isnan.isPrimitive( value )

Tests if a value is a NaN primitive number.

1var Number = require( '@stdlib/number-ctor' );
2
3var bool = isnan.isPrimitive( NaN );
4// returns true
5
6bool = isnan.isPrimitive( 3.14 );
7// returns false
8
9bool = isnan.isPrimitive( new Number( NaN ) );
10// returns false

isnan.isObject( value )

Tests if a value is a Number object having a value of NaN.

1var Number = require( '@stdlib/number-ctor' );
2
3var bool = isnan.isObject( NaN );
4// returns false
5
6bool = isnan.isObject( new Number( NaN ) );
7// returns true

Examples

1var Number = require( '@stdlib/number-ctor' );
2var Symbol = require( '@stdlib/symbol-ctor' );
3var isnan = require( '@stdlib/assert-is-nan' );
4
5var bool = isnan( NaN );
6// returns true
7
8bool = isnan( new Number( NaN ) );
9// returns true
10
11bool = isnan( 5 );
12// returns false
13
14bool = isnan( '5' );
15// returns false
16
17bool = isnan( null );
18// returns false
19
20bool = isnan( Symbol( 'NaN' ) );
21// returns false

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

No vulnerabilities found.

10

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10

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10

License

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9

Security-Policy

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3

Maintained

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3

Pinned-Dependencies

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Reason

dependency not pinned by hash detected -- score normalized to 3

Details

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Info: 31 out of 31 GitHub-owned GitHubAction dependencies pinned
Info: 18 out of 23 third-party GitHubAction dependencies pinned
Info: 0 out of 31 npmCommand dependencies pinned

0

Code-Review

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0

CII-Best-Practices

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

0

SAST

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0

Token-Permissions

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0

Fuzzing

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0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

Score

4.5

/10

Last Scanned on 2024-11-18

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.

Learn More

@stdlib/assert-is-nan

Installations

Pull Requests

0

0

0

Issues

0

0

0

Releases

Unable to fetch releases

Developer

Developer Guide

CommonJS

>=0.10.0

Yes

16.20.2

8.19.4

Statistics

Languages

Total Downloads

7,269,975

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

isNaN

Installation

Usage

isnan( value )

isnan.isPrimitive( value )

isnan.isObject( value )

Examples

See Also

Notice

Community

License

Copyright

10

10

10

10

9

3

3

0

0

0

0

0

0

4.5

/10