Safe Integer

Validates if a value is a safe integer.

Installation

$ npm install validate.io-safe-integer

For use in the browser, use browserify.

Usage

var isSafeInteger = require( 'validate.io-safe-integer' );

isSafeInteger( value )

Validates if a value is a safe integer.

var bool = isSafeInteger( 3 );
// returns true

bool = isSafeInteger( Math.pow( 2, 53 ) - 1 );
// returns true

Examples

var isSafeInteger = require( 'validate.io-safe-integer' );

console.log( isSafeInteger( 3 ) );
// returns true

console.log( isSafeInteger( 3.0 ) );
// returns true

console.log( isSafeInteger( Math.pow( 2, 53 ) - 1 ) );
// returns true

console.log( isSafeInteger( 3.1 ) );
// returns false

console.log( isSafeInteger( Math.pow( 2, 53 ) ) );
// returns false

console.log( isSafeInteger( NaN ) );
// returns false

console.log( isSafeInteger( Number.POSITIVE_INFINITY ) );
// returns false

console.log( isSafeInteger( new Number( 3 ) ) );
// returns false

console.log( isSafeInteger( '3' ) );
// 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

License

MIT license.

Copyright

Copyright © 2015. Athan Reines.