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Tuple19OptionOps<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>

extension Tuple19OptionOps<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> on Record

Provides additional functions on a tuple of 19 Options.

Properties

tupled extension no setter

Option<Record> get tupled

If all items of this tuple are a Some, the respective items are turned into a tuple and returned as a Some. If any item is a

Available on Record, provided by the Tuple19OptionOps<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> extension

Implementation
dart
Option<(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19)>
get tupled => init.tupled.flatMap((x) => last.map(x.appended));

Methods

mapN() extension

Option<T20> mapN<T20>(
  T20 Function(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19) fn,
)

Applies fn to the values of each respective tuple member if all values are a Some. If any item is a None, None will be returned.

Available on Record, provided by the Tuple19OptionOps<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19> extension

Implementation
dart
Option<T20> mapN<T20>(
  Function19<
    T1,
    T2,
    T3,
    T4,
    T5,
    T6,
    T7,
    T8,
    T9,
    T10,
    T11,
    T12,
    T13,
    T14,
    T15,
    T16,
    T17,
    T18,
    T19,
    T20
  >
  fn,
) => tupled.map(fn.tupled);