1#object.getownpropertydescriptors <sup>[![Version Badge][npm-version-svg]][package-url]</sup> 2 3[![Build Status][travis-svg]][travis-url] 4[![dependency status][deps-svg]][deps-url] 5[![dev dependency status][dev-deps-svg]][dev-deps-url] 6[![License][license-image]][license-url] 7[![Downloads][downloads-image]][downloads-url] 8 9[![npm badge][npm-badge-png]][package-url] 10 11[![browser support][testling-svg]][testling-url] 12 13An ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5. 14Invoke its "shim" method to shim `Object.getOwnPropertyDescriptors` if it is unavailable, and if `Object.getOwnPropertyDescriptor` is available. 15 16This 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). 17 18## Example 19 20```js 21var getDescriptors = require('object.getownpropertydescriptors'); 22var assert = require('assert'); 23var obj = { normal: Infinity }; 24var enumDescriptor = { 25 enumerable: false, 26 writable: false, 27 configurable: true, 28 value: true 29}; 30var writableDescriptor = { 31 enumerable: true, 32 writable: true, 33 configurable: true, 34 value: 42 35}; 36var symbol = Symbol(); 37var symDescriptor = { 38 enumerable: true, 39 writable: true, 40 configurable: false, 41 value: [symbol] 42}; 43 44Object.defineProperty(obj, 'enumerable', enumDescriptor); 45Object.defineProperty(obj, 'writable', writableDescriptor); 46Object.defineProperty(obj, 'symbol', symDescriptor); 47 48var descriptors = getDescriptors(obj); 49 50assert.deepEqual(descriptors, { 51 normal: { 52 enumerable: true, 53 writable: true, 54 configurable: true, 55 value: Infinity 56 }, 57 enumerable: enumDescriptor, 58 writable: writableDescriptor, 59 symbol: symDescriptor 60}); 61``` 62 63```js 64var getDescriptors = require('object.getownpropertydescriptors'); 65var assert = require('assert'); 66/* when Object.getOwnPropertyDescriptors is not present */ 67delete Object.getOwnPropertyDescriptors; 68var shimmedDescriptors = getDescriptors.shim(); 69assert.equal(shimmedDescriptors, getDescriptors); 70assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj)); 71``` 72 73```js 74var getDescriptors = require('object.getownpropertydescriptors'); 75var assert = require('assert'); 76/* when Object.getOwnPropertyDescriptors is present */ 77var shimmedDescriptors = getDescriptors.shim(); 78assert.notEqual(shimmedDescriptors, getDescriptors); 79assert.deepEqual(shimmedDescriptors(obj), getDescriptors(obj)); 80``` 81 82## Tests 83Simply clone the repo, `npm install`, and run `npm test` 84 85[package-url]: https://npmjs.org/package/object.getownpropertydescriptors 86[npm-version-svg]: http://versionbadg.es/ljharb/object.getownpropertydescriptors.svg 87[travis-svg]: https://travis-ci.org/ljharb/object.getownpropertydescriptors.svg 88[travis-url]: https://travis-ci.org/ljharb/object.getownpropertydescriptors 89[deps-svg]: https://david-dm.org/ljharb/object.getownpropertydescriptors.svg 90[deps-url]: https://david-dm.org/ljharb/object.getownpropertydescriptors 91[dev-deps-svg]: https://david-dm.org/ljharb/object.getownpropertydescriptors/dev-status.svg 92[dev-deps-url]: https://david-dm.org/ljharb/object.getownpropertydescriptors#info=devDependencies 93[testling-svg]: https://ci.testling.com/ljharb/object.getownpropertydescriptors.png 94[testling-url]: https://ci.testling.com/ljharb/object.getownpropertydescriptors 95[npm-badge-png]: https://nodei.co/npm/object.getownpropertydescriptors.png?downloads=true&stars=true 96[license-image]: http://img.shields.io/npm/l/object.getownpropertydescriptors.svg 97[license-url]: LICENSE 98[downloads-image]: http://img.shields.io/npm/dm/object.getownpropertydescriptors.svg 99[downloads-url]: http://npm-stat.com/charts.html?package=object.getownpropertydescriptors 100
