https://github.com/shinnn/assert-unique

Test if values have no duplication
https://github.com/shinnn/assert-unique

Last synced: 27 days ago
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Test if values have no duplication

• Host: GitHub
• URL: https://github.com/shinnn/assert-unique
• Owner: shinnn
• License: mit
• Created: 2014-11-27T05:01:04.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-04-05T13:20:29.000Z (over 9 years ago)
• Last Synced: 2024-10-07T22:38:18.820Z (about 1 month ago)
• Language: JavaScript
• Size: 188 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# assert-unique

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

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[![Build status](https://ci.appveyor.com/api/projects/status/w903h2cdw14tafdj?svg=true)](https://ci.appveyor.com/project/ShinnosukeWatanabe/assert-unique)

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[![Dependency Status](https://img.shields.io/david/shinnn/assert-unique.svg?label=deps)](https://david-dm.org/shinnn/assert-unique)

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Test if values have no duplication

```javascript

assertUnique(3, 'a', 3, 3, true, 'a'); // Error: 3 and "a" are duplicated. 

```

## Installation

### Package managers

#### [npm](https://www.npmjs.com/)

```sh

npm install assert-unique

```

#### [bower](http://bower.io/)

```sh

bower install assert-unique

```

#### [Duo](http://duojs.org/)

```javascript

var assertUnique = require('shinnn/assert-unique');

```

### Standalone

Directly download [the script file](https://raw.githubusercontent.com/shinnn/assert-unique/master/assert-unique.js) and its dependencies.

#### Dependencies

* [array-duplicated](https://raw.githubusercontent.com/shinnn/array-duplicated/master/array-duplicated.js)

* [array-to-sentence](https://raw.githubusercontent.com/shinnn/array-to-sentence/master/array-to-sentence.js)

## API

### assertUnique([*val0*, *val1*, *val2*, ...])

*val0*, *val1*, *val2*, ...: any types  

It throws an error when the arguments include duplicated values. Otherwise it doesn't throw any errors.

```javascript

assertUnique(1, '1',); // doesn't throw error

assertUnique(); // doesn't throw error

assertUnique('h', 'e', 'l', 'l', 'o'); // Error: "l" is duplicated.

assertUnique(parseInt, parseInt); // Error: [Function: parseInt] is duplicated.

```

*Note that it doesn't check deep equality.*

```javascript

var obj = {};

assertUnique(obj, obj); // Error: {} is duplicated.

assertUnique({}, {}); // doesn't throw error

```

## License

Copyright (c) 2014 [Shinnosuke Watanabe](https://github.com/shinnn)

Licensed under [the MIT License](./LICENSE).