# es-shim-unscopables

> Helper package to shim a method into `Array.prototype[Symbol.unscopables]`

Latest version **1.1.0** (published 2025-02-12) · MIT license · 0 weekly downloads

> **Native alternative:** Array.prototype[Symbol.unscopables] — Use native JavaScript (Node 0.12.0+) (https://developer.mozilla.orgGlobal_Objects/Array/@@unscopables)

## Install

```sh
npm install es-shim-unscopables
pnpm add es-shim-unscopables
yarn add es-shim-unscopables
bun add es-shim-unscopables
```

## Health

**Score 50/100 (C)** — status: stable.

Positive: has types; esm support; no vulnerabilities; high quality score.

Warnings: low downloads.

Negative: stale.

## Facts

| | |
|---|---|
| Version | 1.1.0 |
| Published | 2025-02-12 |
| First published | 2022-04-11 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >= 0.4 |
| Dependencies | 1 |
| Unpacked size | 12.6 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 1 |
| Author | Jordan Harband |
| Maintainers | ljharb |

## Links

- npm: https://www.npmjs.com/package/es-shim-unscopables
- Repository: https://github.com/ljharb/es-shim-unscopables
- Homepage: https://github.com/ljharb/es-shim-unscopables#readme
- Issues: https://github.com/ljharb/es-shim-unscopables/issues
- npm.io page: https://npm.io/package/es-shim-unscopables

## Dependencies (1)

- [hasown](https://npm.io/package/hasown.md) ^2.0.2

## Recent versions

- 1.1.0 (latest) — 2025-02-12
- 1.0.2 — 2023-10-21
- 1.0.1 — 2023-10-21
- 1.0.0 — 2022-04-11

## README

# es-shim-unscopables <sup>[![Version Badge][npm-version-svg]][package-url]</sup>

[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![dependency status][deps-svg]][deps-url]
[![dev dependency status][dev-deps-svg]][dev-deps-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]

[![npm badge][npm-badge-png]][package-url]

Helper package to shim a method into `Array.prototype[Symbol.unscopables]`

## Example

```js
const assert = require('assert');

const shimUnscopables = require('es-shim-unscopables');

let copyWithin;
let concat;
with ([]) {
    assert.equal(concat, Array.prototype.concat);
    assert.notEqual(copyWithin, Array.prototype.copyWithin);
}

shimUnscopables('concat');

with ([]) {
    assert.notEqual(concat, Array.prototype.concat);
    assert.notEqual(copyWithin, Array.prototype.copyWithin);
}
```

## Tests
Simply clone the repo, `npm install`, and run `npm test`

## Security

Please email [@ljharb](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.

[package-url]: https://npmjs.org/package/es-shim-unscopables
[npm-version-svg]: https://versionbadg.es/ljharb/es-shim-unscopables.svg
[deps-svg]: https://david-dm.org/ljharb/es-shim-unscopables.svg
[deps-url]: https://david-dm.org/ljharb/es-shim-unscopables
[dev-deps-svg]: https://david-dm.org/ljharb/es-shim-unscopables/dev-status.svg
[dev-deps-url]: https://david-dm.org/ljharb/es-shim-unscopables#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/es-shim-unscopables.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/es-shim-unscopables.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/es-shim-unscopables.svg
[downloads-url]: https://npm-stat.com/charts.html?package=es-shim-unscopables
[codecov-image]: https://codecov.io/gh/ljharb/es-shim-unscopables/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/ljharb/es-shim-unscopables/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/es-shim-unscopables
[actions-url]: https://github.com/ljharb/es-shim-unscopables/actions

---
_Source: https://npm.io/package/es-shim-unscopables · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._