https://github.com/es-shims/object.getownpropertydescriptors
Spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
https://github.com/es-shims/object.getownpropertydescriptors
ecmascript getownpropertydescriptor getownpropertydescriptors javascript object polyfill shim
Last synced: about 1 month ago
JSON representation
Spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
- Host: GitHub
- URL: https://github.com/es-shims/object.getownpropertydescriptors
- Owner: es-shims
- License: mit
- Created: 2015-02-17T09:14:26.000Z (over 10 years ago)
- Default Branch: main
- Last Pushed: 2024-03-20T05:41:55.000Z (about 1 year ago)
- Last Synced: 2025-05-07T12:55:06.081Z (about 1 month ago)
- Topics: ecmascript, getownpropertydescriptor, getownpropertydescriptors, javascript, object, polyfill, shim
- Language: JavaScript
- Homepage: https://github.com/tc39/proposal-object-getownpropertydescriptors
- Size: 172 KB
- Stars: 20
- Watchers: 4
- Forks: 8
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
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README
# object.getownpropertydescriptors [![Version Badge][npm-version-svg]][package-url]
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An ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
Invoke its "shim" method to shim `Object.getOwnPropertyDescriptors` if it is unavailable, and if `Object.getOwnPropertyDescriptor` is available.
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://github.com/tc39/ecma262/pull/582).
## Example
```js
var getDescriptors = require('object.getownpropertydescriptors');
var assert = require('assert');
var obj = { normal: Infinity };
var enumDescriptor = {
enumerable: false,
writable: false,
configurable: true,
value: true
};
var writableDescriptor = {
enumerable: true,
writable: true,
configurable: true,
value: 42
};
var symbol = Symbol();
var symDescriptor = {
enumerable: true,
writable: true,
configurable: false,
value: [symbol]
};
Object.defineProperty(obj, 'enumerable', enumDescriptor);
Object.defineProperty(obj, 'writable', writableDescriptor);
Object.defineProperty(obj, 'symbol', symDescriptor);
var descriptors = getDescriptors(obj);
assert.deepEqual(descriptors, {
normal: {
enumerable: true,
writable: true,
configurable: true,
value: Infinity
},
enumerable: enumDescriptor,
writable: writableDescriptor,
symbol: symDescriptor
});
```
```js
var getDescriptors = require('object.getownpropertydescriptors');
var assert = require('assert');
/* when Object.getOwnPropertyDescriptors is not present */
delete Object.getOwnPropertyDescriptors;
var shimmedDescriptors = getDescriptors.shim();
assert.equal(shimmedDescriptors, getDescriptors);
assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj));
```
```js
var getDescriptors = require('object.getownpropertydescriptors');
var assert = require('assert');
/* when Object.getOwnPropertyDescriptors is present */
var shimmedDescriptors = getDescriptors.shim();
assert.notEqual(shimmedDescriptors, getDescriptors);
assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj));
```
## Tests
Simply clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/object.getownpropertydescriptors
[npm-version-svg]: http://versionbadg.es/es-shims/Object.getOwnPropertyDescriptors.svg
[travis-svg]: https://travis-ci.org/es-shims/Object.getOwnPropertyDescriptors.svg
[travis-url]: https://travis-ci.org/es-shims/Object.getOwnPropertyDescriptors
[deps-svg]: https://david-dm.org/es-shims/Object.getOwnPropertyDescriptors.svg
[deps-url]: https://david-dm.org/es-shims/Object.getOwnPropertyDescriptors
[dev-deps-svg]: https://david-dm.org/es-shims/Object.getOwnPropertyDescriptors/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/Object.getOwnPropertyDescriptors#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/object.getownpropertydescriptors.png?downloads=true&stars=true
[license-image]: http://img.shields.io/npm/l/object.getownpropertydescriptors.svg
[license-url]: LICENSE
[downloads-image]: http://img.shields.io/npm/dm/object.getownpropertydescriptors.svg
[downloads-url]: http://npm-stat.com/charts.html?package=object.getownpropertydescriptors
[codecov-image]: https://codecov.io/gh/es-shims/Object.getOwnPropertyDescriptors/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/es-shims/Object.getOwnPropertyDescriptors/
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[actions-url]: https://github.com/es-shims/Object.getOwnPropertyDescriptors/actions