85 lines
3.4 KiB
Markdown
85 lines
3.4 KiB
Markdown
# for-in [](https://www.npmjs.com/package/for-in) [](https://npmjs.org/package/for-in) [](https://npmjs.org/package/for-in) [](https://travis-ci.org/jonschlinkert/for-in)
|
|
|
|
> 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
|
|
|
|
## Install
|
|
|
|
Install with [npm](https://www.npmjs.com/):
|
|
|
|
```sh
|
|
$ npm install --save for-in
|
|
```
|
|
|
|
## Usage
|
|
|
|
```js
|
|
var forIn = require('for-in');
|
|
|
|
var obj = {a: 'foo', b: 'bar', c: 'baz'};
|
|
var values = [];
|
|
var keys = [];
|
|
|
|
forIn(obj, function (value, key, o) {
|
|
keys.push(key);
|
|
values.push(value);
|
|
});
|
|
|
|
console.log(keys);
|
|
//=> ['a', 'b', 'c'];
|
|
|
|
console.log(values);
|
|
//=> ['foo', 'bar', 'baz'];
|
|
```
|
|
|
|
## About
|
|
|
|
### Related projects
|
|
|
|
* [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten "Recursively flatten an array or arrays. This is the fastest implementation of array flatten.")
|
|
* [collection-map](https://www.npmjs.com/package/collection-map): Returns an array of mapped values from an array or object. | [homepage](https://github.com/jonschlinkert/collection-map "Returns an array of mapped values from an array or object.")
|
|
* [for-own](https://www.npmjs.com/package/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own) | [homepage](https://github.com/jonschlinkert/for-own "Iterate over the own 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.")
|
|
|
|
### Contributing
|
|
|
|
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
|
|
|
|
### Contributors
|
|
|
|
| **Commits** | **Contributor** |
|
|
| --- | --- |
|
|
| 16 | [jonschlinkert](https://github.com/jonschlinkert) |
|
|
| 2 | [paulirish](https://github.com/paulirish) |
|
|
|
|
### Building docs
|
|
|
|
_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
|
|
|
|
To generate the readme, run the following command:
|
|
|
|
```sh
|
|
$ npm install -g verbose/verb#dev verb-generate-readme && verb
|
|
```
|
|
|
|
### Running tests
|
|
|
|
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
|
|
|
|
```sh
|
|
$ npm install && npm test
|
|
```
|
|
|
|
### Author
|
|
|
|
**Jon Schlinkert**
|
|
|
|
* [github/jonschlinkert](https://github.com/jonschlinkert)
|
|
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
|
|
|
|
### License
|
|
|
|
Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
|
|
Released under the [MIT License](LICENSE).
|
|
|
|
***
|
|
|
|
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 28, 2017._ |