Test whether value is NaN
npm install isnan
Test whether value is NaN.
``bash$ npm install isnan`
bash$ npm install isnan
`jsconst isNaN = require('isnan');
jsconst isNaN = require('isnan');
isNaN('foo' / 1);// => true
isNaN({ foo: 'bar' });// => false`
`bash$ npm test``
bash$ npm test
MIT