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 interface. It works in an ES3-supported environment and complies with the spec.
```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));
Simply clone the repo, npm install, and run npm test