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75 lines
1.8 KiB
Markdown
75 lines
1.8 KiB
Markdown
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# for-in [](https://www.npmjs.com/package/for-in) [](https://npmjs.org/package/for-in) [](https://travis-ci.org/jonschlinkert/for-in)
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> Iterate over the own and inherited enumerable properties of an object, and return an object with properties that evaluate to true from the callback. Exit early by returning `false`. JavaScript/Node.js
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install for-in --save
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```
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## Usage
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```js
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var forIn = require('for-in');
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var obj = {a: 'foo', b: 'bar', c: 'baz'};
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var values = [];
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var keys = [];
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forIn(obj, function (value, key, o) {
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keys.push(key);
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values.push(value);
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});
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console.log(keys);
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//=> ['a', 'b', 'c'];
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console.log(values);
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//=> ['foo', 'bar', 'baz'];
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```
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## Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/for-in/issues/new).
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## Building docs
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Generate readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install verb && npm run docs
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```
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Or, if [verb](https://github.com/verbose/verb) is installed globally:
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```sh
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$ verb
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```
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## Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && npm test
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```
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## Author
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**Jon Schlinkert**
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* [github/jonschlinkert](https://github.com/jonschlinkert)
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* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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## License
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Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/for-in/blob/master/LICENSE).
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***
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_This file was generated by [verb](https://github.com/verbose/verb), v, on March 27, 2016._
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