75 lines
2.1 KiB
Markdown
75 lines
2.1 KiB
Markdown
# arr-diff [](https://www.npmjs.com/package/arr-diff) [](https://travis-ci.org/jonschlinkert/base)
|
|
|
|
> Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
|
|
|
|
## Install
|
|
|
|
Install with [npm](https://www.npmjs.com/)
|
|
|
|
```sh
|
|
$ npm i arr-diff --save
|
|
```
|
|
Install with [bower](http://bower.io/)
|
|
|
|
```sh
|
|
$ bower install arr-diff --save
|
|
```
|
|
|
|
## API
|
|
|
|
### [diff](index.js#L33)
|
|
|
|
Return the difference between the first array and additional arrays.
|
|
|
|
**Params**
|
|
|
|
* `a` **{Array}**
|
|
* `b` **{Array}**
|
|
* `returns` **{Array}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
var diff = require('arr-diff');
|
|
|
|
var a = ['a', 'b', 'c', 'd'];
|
|
var b = ['b', 'c'];
|
|
|
|
console.log(diff(a, b))
|
|
//=> ['a', 'd']
|
|
```
|
|
|
|
## 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)
|
|
* [array-filter](https://www.npmjs.com/package/array-filter): Array#filter for older browsers. | [homepage](https://github.com/juliangruber/array-filter)
|
|
* [array-intersection](https://www.npmjs.com/package/array-intersection): Return an array with the unique values present in _all_ given arrays using strict equality… [more](https://www.npmjs.com/package/array-intersection) | [homepage](https://github.com/jonschlinkert/array-intersection)
|
|
|
|
## Running tests
|
|
|
|
Install dev dependencies:
|
|
|
|
```sh
|
|
$ npm i -d && npm test
|
|
```
|
|
|
|
## Contributing
|
|
|
|
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/arr-diff/issues/new).
|
|
|
|
## Author
|
|
|
|
**Jon Schlinkert**
|
|
|
|
+ [github/jonschlinkert](https://github.com/jonschlinkert)
|
|
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
|
|
|
|
## License
|
|
|
|
Copyright © 2015 [Jon Schlinkert](https://github.com/jonschlinkert)
|
|
Released under the MIT license.
|
|
|
|
***
|
|
|
|
_This file was generated by [verb](https://github.com/verbose/verb) on Sat Dec 05 2015 23:24:53 GMT-0500 (EST)._
|