https://github.com/shinnn/array-duplicated

Return an array of duplicated values in a given array
https://github.com/shinnn/array-duplicated

Last synced: 27 days ago
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Return an array of duplicated values in a given array

• Host: GitHub
• URL: https://github.com/shinnn/array-duplicated
• Owner: shinnn
• License: isc
• Created: 2014-11-17T07:21:47.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2018-12-14T01:54:44.000Z (almost 6 years ago)
• Last Synced: 2024-09-18T02:05:44.975Z (about 2 months ago)
• Language: JavaScript
• Homepage: https://npm.runkit.com/array-duplicated
• Size: 79.1 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# array-duplicated

[![npm version](https://img.shields.io/npm/v/array-duplicated.svg)](https://www.npmjs.com/package/array-duplicated)

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Return duplicated values in a given `Array`

```javascript

arrayDuplicated(['a', 2, 'b', true, 'b', 12, 'b', true, ['a']]) //=> ['b', true];

```

## Installation

[Use](https://docs.npmjs.com/cli/install) [npm](https://docs.npmjs.com/getting-started/what-is-npm).

```

npm install array-duplicated

```

## API

```javascript

import arrayDuplicated from 'array-duplicated';

```

### arrayDuplicated(*array*)

*array*: `Array`  

Return: `Array`

It finds duplicated values in the `Array` and returns an `Array` of them.

```javascript

arrayDuplicated([0, 1, 1, 1, 1, 1, 1, 1, 1, 1]); //=> [1]

```

"Duplicated" means a value is identical to another value in the ECMAScript [same-value equality](https://developer.mozilla.org/docs/Web/JavaScript/Equality_comparisons_and_sameness#Same-value_equality) level.

```javascript

arrayDuplicated([-0, 0]); //=> []

```

## License

[ISC License](./LICENSE) © 2017 - 2018 Shinnosuke Watanabe