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Gathering detailed insights and metrics for array.prototype.flatmap

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Gathering detailed insights and metrics for array.prototype.flatmap

array.prototype.flatmap - 1.3.3 | npmpackage.info

array.prototype.flatmap

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

1.3.3

MIT

JavaScript

20.39 kB

4.4

Installations

npm install array.prototype.flatmap

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Min. Node Version

>= 0.4

Node Version

23.4.0

NPM Version

10.9.2 Score

96.1

Supply Chain

92.7

Quality

76.4

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

5

Closed

1

Merged

4

Issues

Open

1

Total

5

Closed

4

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

32 Stars

102 Commits

6 Forks

5 Watchers

1 Branches

1 Contributors

Updated on Dec 16, 2024

Sponsor this package

https://github.com/sponsors/ljharb

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

1.3.3

Package Id

array.prototype.flatmap@1.3.3

Unpacked Size

20.39 kB

Size

7.26 kB

File Count

NPM Version

10.9.2

Node Version

23.4.0

Published on

Dec 16, 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 encoding eslint evalmd for-each has-strict-mode in-publish npmignore nyc object-inspect safe-publish-latest tape

array.prototype.flatmap

An ES2019 spec-compliant Array.prototype.flatMap 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 spec.

Because Array.prototype.flatMap 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.flatmap

Usage/Examples

1var flatMap = require('array.prototype.flatmap');
2var assert = require('assert');
3
4var arr = [1, [2], [], 3];
5
6var results = flatMap(arr, function (x, i) {
7	assert.equal(x, arr[i]);
8	return x;
9});
10
11assert.deepEqual(results, [1, 2, 3]);

1var flatMap = require('array.prototype.flatmap');
2var assert = require('assert');
3/* when Array#flatMap is not present */
4delete Array.prototype.flatMap;
5var shimmedFlatMap = flatMap.shim();
6
7var mapper = function (x) { return [x, 1]; };
8
9assert.equal(shimmedFlatMap, flatMap.getPolyfill());
10assert.deepEqual(arr.flatMap(mapper), flatMap(arr, mapper));

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

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

License

Determines if the project has defined a license.

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

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

SAST

Determines if the project uses static code analysis.

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

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.

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