validate.io-negative-integer

Negative Integer

Validates if a value is a negative integer.

Installation

$ npm install validate.io-negative-integer

For use in the browser, use browserify.

Usage

var isNegativeInteger = require( 'validate.io-negative-integer' );

isNegativeInteger( value )

Validates if a value is a negative integer.

var value = -5;
 
var bool = isNegativeInteger( value );
// returns true

Examples

var isNegativeInteger = require( 'validate.io-negative-integer' );
 
console.log( isNegativeInteger( -5 ) );
// returns true
 
console.log( isNegativeInteger( 0 ) );
// returns false
 
console.log( isNegativeInteger( -Math.PI ) );
// returns false
 
console.log( isNegativeInteger( 5 ) );
// returns false

To run the example code from the top-level application directory,

$ node ./examples/index.js

Tests

Unit

Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:

$ make test

All new feature development should have corresponding unit tests to validate correct functionality.

Test Coverage

This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

$ make test-cov

Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

$ make view-cov

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License

MIT license.

Copyright

Copyright © 2015. Athan Reines.