This is a
playground to test code. It runs a full
Node.js environment and already has all of
npm’s 400,000 packages pre-installed, including
validate.io-nan with all
npm packages installed. Try it out:
This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.
Validates if a value is NaN.
$ npm install validate.io-nan
For use in the browser, use browserify.
var isnan = require( 'validate.io-nan' );
Validates if a
var value = NaN; var bool = isnan( value ); // returns true
Note: the method first validates that a
numeric before validating if a
NaN. For non-numeric values, the method returns
console.log( isnan( NaN ) ); // returns true console.log( isnan( '5' ) ); // returns false console.log( isnan( 5 ) ); // returns false
To run the example code from the top-level application directory,
$ node ./examples/index.js
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
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
Copyright © 2014. Athan Reines.