map4<A, B, C, D, E> static method

Task<E> map4<A, B, C, D, E>(
  1. Task<A> a,
  2. Task<B> b,
  3. Task<C> c,
  4. Task<D> d,
  5. E fn(
    1. A a,
    2. B b,
    3. C c,
    4. D d,
    ),
)

Implementation

static Task<E> map4<A, B, C, D, E>(Task<A> a, Task<B> b, Task<C> c, Task<D> d, E Function(A a, B b, C c, D d) fn) =>
  tupled4(a, b, c, d).map((abcd) => abcd.apply(fn));