select2<SubState1, SubState2, Result> method
Select two sub states and combine them by projector
.
The returned Stream is a single-subscription Stream.
Implementation
StateStream<Result> select2<SubState1, SubState2, Result>(
Selector<State, SubState1> selector1,
Selector<State, SubState2> selector2,
Result Function(SubState1 subState1, SubState2 subState2) projector, {
Equality<SubState1>? equals1,
Equality<SubState2>? equals2,
Equality<Result>? equals,
}) =>
_select2Internal(
this,
selector1,
selector2,
projector,
equals1,
equals2,
equals,
);