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Gathering detailed insights and metrics for which-collection

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Gathering detailed insights and metrics for which-collection

which-collection - 1.0.2 | npmpackage.info

which-collection

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

1.0.2

MIT

JavaScript

19.59 kB

1,960,946,714 4.4

Installations

npm install which-collection

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS, ESM

Min. Node Version

>= 0.4

Node Version

21.7.0

NPM Version

10.5.0 Pull Requests

Open

0

Total

5

Closed

0

Merged

5

Issues

Open

1

Total

4

Closed

3

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

inspect-js

Download Statistics

Total Downloads

1,960,946,714

Last Day

4,803,042

Last Week

26,346,912

Last Month

114,516,558

Last Year

1,032,629,254

GitHub Statistics

MIT License

10 Stars

47 Commits

2 Forks

3 Watchers

1 Branches

1 Contributors

Updated on Mar 16, 2024

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

1.0.2

Package Id

which-collection@1.0.2

Unpacked Size

19.59 kB

Size

7.11 kB

File Count

NPM Version

10.5.0

Node Version

21.7.0

Published on

Mar 08, 2024

Total Downloads

Cumulative downloads

Total Downloads

1,960,946,714

Last Day

42.9%

4,803,042

Compared to previous day

Last Week

4.2%

26,346,912

Compared to previous week

Last Month

-5.8%

114,516,558

Compared to previous month

Last Year

70.1%

1,032,629,254

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

which-collection

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without instanceof, and despite Symbol.toStringTag.

Example

1var whichCollection = require('which-collection');
2var assert = require('assert');
3
4assert.equal(false, whichCollection(undefined));
5assert.equal(false, whichCollection(null));
6assert.equal(false, whichCollection(false));
7assert.equal(false, whichCollection(true));
8assert.equal(false, whichCollection([]));
9assert.equal(false, whichCollection({}));
10assert.equal(false, whichCollection(/a/g));
11assert.equal(false, whichCollection(new RegExp('a', 'g')));
12assert.equal(false, whichCollection(new Date()));
13assert.equal(false, whichCollection(42));
14assert.equal(false, whichCollection(NaN));
15assert.equal(false, whichCollection(Infinity));
16assert.equal(false, whichCollection(new Number(42)));
17assert.equal(false, whichCollection(42n));
18assert.equal(false, whichCollection(Object(42n)));
19assert.equal(false, whichCollection('foo'));
20assert.equal(false, whichCollection(Object('foo')));
21assert.equal(false, whichCollection(function () {}));
22assert.equal(false, whichCollection(function* () {}));
23assert.equal(false, whichCollection(x => x * x));
24assert.equal(false, whichCollection([]));
25
26assert.equal('Map', whichCollection(new Map()));
27assert.equal('Set', whichCollection(new Set()));
28assert.equal('WeakMap', whichCollection(new WeakMap()));
29assert.equal('WeakSet', whichCollection(new WeakSet()));

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

Maintained

Determines if the project is "actively maintained".

0

Code-Review

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

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 2025-05-05

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

Other packages similar to which-collection

Other packages similar to which-collection

which-collection

Installations

Developer Guide

Yes

CommonJS, ESM

>= 0.4

21.7.0

10.5.0

Pull Requests

0

5

0

5

Issues

1

4

3

Releases

Unable to fetch releases

Languages

Developer

inspect-js

Download Statistics

GitHub Statistics

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

1,960,946,714

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

Dev Dependencies

which-collection

Example

Tests

10

10

10

10

9

0

0

0

0

0

0

0

4.4

/10