conditionally<N> method
Implementation
Optional<N> conditionally<N>(final bool Function(Optional<T>) condition, final Optional<N> Function(Optional<T>) mapper) {
return condition(this) ? mapper(this) : empty();
}
Optional<N> conditionally<N>(final bool Function(Optional<T>) condition, final Optional<N> Function(Optional<T>) mapper) {
return condition(this) ? mapper(this) : empty();
}