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Gathering detailed insights and metrics for is-weakref

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Gathering detailed insights and metrics for is-weakref

is-weakref - 1.1.1 | npmpackage.info

is-weakref

Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

1.1.1

MIT

JavaScript

15.50 kB

4.4

Installations

npm install is-weakref

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS, ESM

Min. Node Version

>= 0.4

Node Version

23.6.1

NPM Version

10.9.2 Score

99.2

Supply Chain

80.6

Quality

77.3

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

1

Closed

0

Merged

1

Issues

Open

1

Total

1

Closed

0

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

inspect-js

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

3 Stars

56 Commits

2 Forks

3 Watchers

1 Branches

1 Contributors

Updated on Feb 03, 2025

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

1.1.1

Package Id

is-weakref@1.1.1

Unpacked Size

15.50 kB

Size

6.12 kB

File Count

NPM Version

10.9.2

Node Version

23.6.1

Published on

Feb 03, 2025

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-bound

Dev Dependencies

@arethetypeswrong/cli @ljharb/eslint-config @ljharb/tsconfig @types/for-each @types/object-inspect @types/tape auto-changelog encoding eslint for-each in-publish npmignore nyc object-inspect safe-publish-latest tape typescript

is-weakref

[![npm badge][11]][1]

Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Example

1var isWeakRef = require('is-weakref');
2assert(!isWeakRef(function () {}));
3assert(!isWeakRef(null));
4assert(!isWeakRef(function* () { yield 42; return Infinity; });
5assert(!isWeakRef(Symbol('foo')));
6assert(!isWeakRef(1n));
7assert(!isWeakRef(Object(1n)));
8
9assert(!isWeakRef(new Set()));
10assert(!isWeakRef(new WeakSet()));
11assert(!isWeakRef(new Map()));
12assert(!isWeakRef(new WeakMap()));
13
14assert(isWeakRef(new WeakRef({})));
15
16class MyWeakRef extends WeakRef {}
17assert(isWeakRef(new MyWeakRef({})));

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

SAST

Determines if the project uses static code analysis.

0

Pinned-Dependencies

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

0

Maintained

Determines if the project is "actively maintained".

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.

Score

4.4

/10

Last Scanned on 2025-07-07

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