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PR-URL: https://github.com/nodejs/node/pull/28525 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com> |
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| .editorconfig | ||
| .eslintrc | ||
| .jscs.json | ||
| .travis.yml | ||
| CHANGELOG.md | ||
| index.js | ||
| isArguments.js | ||
| LICENSE | ||
| package.json | ||
| README.md | ||
#object-keys 
An Object.keys shim. Invoke its "shim" method to shim Object.keys if it is unavailable.
Most common usage:
var keys = Object.keys || require('object-keys');
Example
var keys = require('object-keys');
var assert = require('assert');
var obj = {
a: true,
b: true,
c: true
};
assert.deepEqual(keys(obj), ['a', 'b', 'c']);
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));
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, with modifications, including from lodash.
Tests
Simply clone the repo, npm install, and run npm test