isErrAnd method
Returns true
if this
is an Err with a contained error that satisfies condition
.
Examples
// prints "false"
print(const Ok<int, String>(2).isErrAnd((value) => value == 'error'));
// prints "true"
print(const Err<int, String>('error').isErrAnd((value) => value == 'error'));
Implementation
@override
@useResult
bool isErrAnd(bool Function(E error) condition) => false;