Function isNaN

isNaN(value): boolean
It will determine whether the provided value is NaN or not.
Parameters
- value: unknown
Returns boolean
Since
1.0.0

Example
```
isNaN(NaN);
// => true
```
Example
```
isNaN(2);
// => false
```
Example
```
isNaN(undefined);
// => false
```
- Defined in is-nan.ts:16