Function isErr

isErr<T, E>(value: Result<T, E>): value is Err<E>
Checks whether a result is an error.
Type Parameters
- T
- E
Parameters
- value: Result<T, E>
  Result to evaluate.
Returns value is Err<E>
Returns true if the passed result is Err. Otherwise, it returns false.
- Defined in index.ts:86