# object.hasown

> ES spec-compliant shim for Object.hasOwn

Latest version **1.1.4** (published 2024-03-22) · MIT license · 0 weekly downloads

> **Native alternative:** Object.hasOwn — Use native JavaScript (Node 16.9.0+) (https://developer.mozilla.orgGlobal_Objects/Object/hasOwn)

## Install

```sh
npm install object.hasown
pnpm add object.hasown
yarn add object.hasown
bun add object.hasown
```

## Health

**Score 25/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned.

## Facts

| | |
|---|---|
| Version | 1.1.4 |
| Published | 2024-03-22 |
| First published | 2021-05-25 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 17 |
| Author | Jordan Harband |
| Maintainers | ljharb |
| Keywords | Object, hasOwn, polyfill, shim, es-shim API |

## Links

- npm: https://www.npmjs.com/package/object.hasown
- Repository: https://github.com/es-shims/Object.hasOwn
- Issues: https://github.com/es-shims/Object.hasOwn/issues
- Funding: https://github.com/sponsors/ljharb
- npm.io page: https://npm.io/package/object.hasown

## Recent versions

- 1.1.4 (latest) — 2024-03-22
- 1.1.3 — 2023-08-28
- 1.1.2 — 2022-11-07
- 1.1.1 — 2022-05-05
- 1.1.0 — 2021-10-04
- 1.0.0 — 2021-05-25

## README

# object.hasown <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]

An ES spec-compliant `Object.hasOwn` shim. Invoke its "shim" method to shim `Object.hasOwn` if it is unavailable or noncompliant.

This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the [spec](https://tc39.es/proposal-accessible-object-hasownproperty/).

Most common usage:
```js
var assert = require('assert');
var hasOwn = require('object.hasown');

var obj = { a: 1, b: 2 };

assert(hasOwn(obj, 'a'));
assert(hasOwn(obj, 'b'));
assert('toString' in obj && !hasOwn(obj, 'toString'));

if (!Object.hasOwn) {
	hasOwn.shim();
}

assert.deepEqual(Object.hasOwn(obj, 'a'), hasOwn(obj, 'a'));
```

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

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

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