map3<C, D, E> method
Change type of this Reader based on its value of type A
, the
value of type C
of a second Reader, and the value of type D
of a third Reader.
Implementation
@override
Reader<R, E> map3<C, D, E>(covariant Reader<R, C> m1,
covariant Reader<R, D> m2, E Function(A a, C c, D d) f) =>
flatMap((a) => m1.flatMap((c) => m2.map((d) => f(a, c, d))));