https://github.com/es-shims/object.defineproperties
ES spec-compliant `Object.defineProperties` shim/polyfill/replacement that works as far down as ES3
https://github.com/es-shims/object.defineproperties
defineproperties defineproperty ecmascript javascript object polyfill shim
Last synced: 4 months ago
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ES spec-compliant `Object.defineProperties` shim/polyfill/replacement that works as far down as ES3
- Host: GitHub
- URL: https://github.com/es-shims/object.defineproperties
- Owner: es-shims
- License: mit
- Created: 2022-05-05T13:34:02.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-03-17T07:21:01.000Z (almost 2 years ago)
- Last Synced: 2025-09-21T13:36:49.544Z (4 months ago)
- Topics: defineproperties, defineproperty, ecmascript, javascript, object, polyfill, shim
- Language: JavaScript
- Homepage: https://tc39.es/ecma262/#sec-object.defineproperties
- Size: 43 KB
- Stars: 3
- Watchers: 4
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
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README
# object.defineproperties [![Version Badge][npm-version-svg]][package-url]
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[![dev dependency status][dev-deps-svg]][dev-deps-url]
[![License][license-image]][license-url]
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[![npm badge][npm-badge-png]][package-url]
An ES spec-compliant `Object.defineProperties` shim. Invoke its "shim" method to shim `Object.defineProperties` 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/ecma262/#sec-object.defineproperties).
Most common usage:
```js
var assert = require('assert');
var defineProperties = require('object.defineproperties');
var descriptors = {
a: {
value: 2
},
c: {
configurable: true,
enumerable: true,
value: 3,
writable: true
}
};
var obj = { a: 1, b: 2 };
var result = defineProperties(obj, descriptors);
assert.equal(obj, result); // same object
assert.deepEqual(obj, { a: 2, b: 2, c: 3 });
defineProperties.shim();
assert.deepEqual(
Object.defineProperties({ a: 1, b: 2 }, descriptors),
defineProperties({ a: 1, b: 2 }, descriptors)
);
```
## Tests
Simply clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.com/package/object.defineproperties
[npm-version-svg]: https://versionbadg.es/es-shims/Object.defineProperties.svg
[deps-svg]: https://david-dm.org/es-shims/Object.defineProperties.svg
[deps-url]: https://david-dm.org/es-shims/Object.defineProperties
[dev-deps-svg]: https://david-dm.org/es-shims/Object.defineProperties/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/Object.defineProperties#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/object.defineproperties.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/object.defineproperties.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/object.defineproperties.svg
[downloads-url]: https://npm-stat.com/charts.html?package=object.defineproperties
[codecov-image]: https://codecov.io/gh/es-shims/Object.defineProperties/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/es-shims/Object.defineProperties/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/Object.defineProperties
[actions-url]: https://github.com/es-shims/Object.defineProperties/actions