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Gathering detailed insights and metrics for array.prototype.flat

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array.prototype.flat - 1.3.3 | npmpackage.info

array.prototype.flat

An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

1.3.3

MIT

JavaScript

19.25 kB

4.4

Installations

npm install array.prototype.flat

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Min. Node Version

>= 0.4

Node Version

23.4.0

NPM Version

10.9.2 Score

Supply Chain

89.9

Quality

76.2

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

8

Closed

1

Merged

7

Issues

Open

1

Total

7

Closed

6

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

31 Stars

102 Commits

8 Forks

4 Watchers

1 Branches

3 Contributors

Updated on May 15, 2025

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 3 Contributors

Package Meta Information

Latest Version

1.3.3

Package Id

array.prototype.flat@1.3.3

Unpacked Size

19.25 kB

Size

6.97 kB

File Count

NPM Version

10.9.2

Node Version

23.4.0

Published on

Dec 15, 2024

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 es-abstract es-shim-unscopables

Dev Dependencies

@es-shims/api @ljharb/eslint-config auto-changelog covert encoding eslint evalmd function-bind has-strict-mode in-publish npmignore nyc object-inspect safe-publish-latest tape

array.prototype.flat

An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.

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

Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.

Getting started

1npm install --save array.prototype.flat

Usage/Examples

1var flat = require('array.prototype.flat');
2var assert = require('assert');
3
4var arr = [1, [2], [], 3, [[4]]];
5
6assert.deepEqual(flat(arr, 1), [1, 2, 3, [4]]);

1var flat = require('array.prototype.flat');
2var assert = require('assert');
3/* when Array#flat is not present */
4delete Array.prototype.flat;
5var shimmedFlat = flat.shim();
6
7assert.equal(shimmedFlat, flat.getPolyfill());
8assert.deepEqual(arr.flat(), flat(arr));

1var flat = require('array.prototype.flat');
2var assert = require('assert');
3/* when Array#flat is present */
4var shimmedIncludes = flat.shim();
5
6var mapper = function (x) { return [x, 1]; };
7
8assert.equal(shimmedIncludes, Array.prototype.flat);
9assert.deepEqual(arr.flat(mapper), flat(arr, mapper));

Tests

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

No vulnerabilities found.

10

Binary-Artifacts

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

10

Dangerous-Workflow

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

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

SAST

Determines if the project uses static code analysis.

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.

Score

4.4

/10

Last Scanned on 2025-07-07

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