Testing for NaN

Eslint complains about use of isNaN (in certain configurations). The proposed answer is to use Number.isNaN but if you're testing specifically for NaN this is the method to use:

Number.isNaN(Number(value))

// bad
isNaN('1.2'); // false
isNaN('1.2.3'); // true

// good
Number.isNaN(Number('1.2'));   // false - 1.2 is a float
Number.isNaN(Number('1.2.3')); // true - isNaN, 1.2.3 is a string