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- #object-keys <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
-
- [![Build Status][travis-svg]][travis-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]
-
- [![browser support][testling-svg]][testling-url]
-
- An Object.keys shim. Invoke its "shim" method to shim Object.keys if it is unavailable.
-
- Most common usage:
- ```js
- var keys = Object.keys || require('object-keys');
- ```
-
- ## Example
-
- ```js
- var keys = require('object-keys');
- var assert = require('assert');
- var obj = {
- a: true,
- b: true,
- c: true
- };
-
- assert.deepEqual(keys(obj), ['a', 'b', 'c']);
- ```
-
- ```js
- var keys = require('object-keys');
- var assert = require('assert');
- /* when Object.keys is not present */
- delete Object.keys;
- var shimmedKeys = keys.shim();
- assert.equal(shimmedKeys, keys);
- assert.deepEqual(Object.keys(obj), keys(obj));
- ```
-
- ```js
- var keys = require('object-keys');
- var assert = require('assert');
- /* when Object.keys is present */
- var shimmedKeys = keys.shim();
- assert.equal(shimmedKeys, Object.keys);
- assert.deepEqual(Object.keys(obj), keys(obj));
- ```
-
- ## Source
- Implementation taken directly from [es5-shim][es5-shim-url], with modifications, including from [lodash][lodash-url].
-
- ## Tests
- Simply clone the repo, `npm install`, and run `npm test`
-
- [package-url]: https://npmjs.org/package/object-keys
- [npm-version-svg]: http://versionbadg.es/ljharb/object-keys.svg
- [travis-svg]: https://travis-ci.org/ljharb/object-keys.svg
- [travis-url]: https://travis-ci.org/ljharb/object-keys
- [deps-svg]: https://david-dm.org/ljharb/object-keys.svg
- [deps-url]: https://david-dm.org/ljharb/object-keys
- [dev-deps-svg]: https://david-dm.org/ljharb/object-keys/dev-status.svg
- [dev-deps-url]: https://david-dm.org/ljharb/object-keys#info=devDependencies
- [testling-svg]: https://ci.testling.com/ljharb/object-keys.png
- [testling-url]: https://ci.testling.com/ljharb/object-keys
- [es5-shim-url]: https://github.com/es-shims/es5-shim/blob/master/es5-shim.js#L542-589
- [lodash-url]: https://github.com/lodash/lodash
- [npm-badge-png]: https://nodei.co/npm/object-keys.png?downloads=true&stars=true
- [license-image]: http://img.shields.io/npm/l/object-keys.svg
- [license-url]: LICENSE
- [downloads-image]: http://img.shields.io/npm/dm/object-keys.svg
- [downloads-url]: http://npm-stat.com/charts.html?package=object-keys
-
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