Check if a value is an error constructor
npm install is-error-constructor> Check if a value is an error constructor
```
$ npm install is-error-constructor
`js
import isErrorConstructor from 'is-error-constructor';
isErrorConstructor(Error);
//=> true
isErrorConstructor(RangeError);
//=> true
function FakeError() {}
isErrorConstructor(FakeError);
//=> false
class UnicornError extends Error {}
isErrorConstructor(UnicornError);
//=> true
``
- is - Type check values