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111 lines
2.5 KiB
111 lines
2.5 KiB
Number
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===
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[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] [![Dependencies][dependencies-image]][dependencies-url]
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> Validates if a value is a number.
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## Installation
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``` bash
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$ npm install validate.io-number
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```
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For use in the browser, use [browserify](https://github.com/substack/node-browserify).
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## Usage
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``` javascript
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var isNumber = require( 'validate.io-number' );
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```
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#### isNumber( value )
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Validates if a `value` is a `number`.
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``` javascript
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var value = Math.PI;
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var bool = isNumber( value );
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// returns true
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```
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## Examples
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``` javascript
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console.log( isNumber( 5 ) );
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// returns true
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console.log( isNumber( new Number( 5 ) ) );
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// returns true
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console.log( isNumber( NaN ) );
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// returns false
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```
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To run the example code from the top-level application directory,
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``` bash
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$ node ./examples/index.js
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```
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## Tests
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### Unit
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Unit tests use the [Mocha](http://mochajs.org) test framework with [Chai](http://chaijs.com) assertions. To run the tests, execute the following command in the top-level application directory:
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``` bash
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$ make test
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```
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All new feature development should have corresponding unit tests to validate correct functionality.
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### Test Coverage
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This repository uses [Istanbul](https://github.com/gotwarlost/istanbul) as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
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``` bash
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$ make test-cov
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```
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Istanbul creates a `./reports/coverage` directory. To access an HTML version of the report,
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``` bash
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$ make view-cov
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```
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---
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## License
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[MIT license](http://opensource.org/licenses/MIT).
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## Copyright
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Copyright © 2014. Athan Reines.
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[npm-image]: http://img.shields.io/npm/v/validate.io-number.svg
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[npm-url]: https://npmjs.org/package/validate.io-number
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[travis-image]: http://img.shields.io/travis/validate-io/number/master.svg
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[travis-url]: https://travis-ci.org/validate-io/number
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[coveralls-image]: https://img.shields.io/coveralls/validate-io/number/master.svg
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[coveralls-url]: https://coveralls.io/r/validate-io/number?branch=master
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[dependencies-image]: http://img.shields.io/david/validate-io/number.svg
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[dependencies-url]: https://david-dm.org/validate-io/number
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[dev-dependencies-image]: http://img.shields.io/david/dev/validate-io/number.svg
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[dev-dependencies-url]: https://david-dm.org/dev/validate-io/number
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[github-issues-image]: http://img.shields.io/github/issues/validate-io/number.svg
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[github-issues-url]: https://github.com/validate-io/number/issues
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