FutureOptionExtension<T extends Object> extension

FutureOption represents an asynchronous Option. And as such, inherits all of Option's methods.

on

• FutureOption<T>

Methods

and<U extends Object>(Option<U> other) → Future<Option<U>>

andThen<U extends Object>(FutureOr<Option<U>> f(T)) → Future<Option<U>>

expect(String msg) → Future<T>

filter(FutureOr<bool> predicate(T)) → Future<Option<T>>

inspect(FutureOr<void> f(T)) → Future<Option<T>>

isNone() → Future<bool>

isSome() → Future<bool>

isSomeAnd(FutureOr<bool> f(T)) → Future<bool>

iter() → Future<RIterator<T>>

map<U extends Object>(U f(T)) → Future<Option<U>>

mapOr<U>(U defaultValue, U f(T)) → Future<U>

mapOrElse<U>(U defaultFn(), U f(T)) → Future<U>

okOr<E extends Object>(E err) → Future<Result<T, E>>

okOrElse<E extends Object>(E errFn()) → Future<Result<T, E>>

or(Option<T> other) → Future<Option<T>>

orElse(Option<T> f()) → Future<Option<T>>

toNullable() → Future<T?>

unwrap() → Future<T>

unwrapOr(T defaultValue) → Future<T>

unwrapOrElse(T f()) → Future<T>

xor(Option<T> other) → Future<Option<T>>

zip<U extends Object>(Option<U> other) → Future<Option<(T, U)>>

zipWith<U extends Object, R extends Object>(Option<U> other, R f(T, U)) → Future<Option<R>>

Operators

operator [](_OptionEarlyReturnKey op) → Future<T>