Function isFailure

isFailure<E>(result: Result.Result<unknown, E>): result is Failure<E>
Type guard to check if a Result is a Failure.
Type Parameters
- E
  The type of the error value.
Parameters
- result: Result.Result<unknown, E>
  The Result to check.
Returns result is Failure<E>
true if the result is a Failure, otherwise false.
Example
```
import { Result } from '@praha/byethrow';

const result: Result.Result<number, string> = { type: 'Failure', error: 'Something went wrong' };
if (Result.isFailure(result)) {
  console.error(result.error); // Safe access to error
}
```
- Defined in functions/is-failure.ts:23