map4<F, A, A2 extends A, B, B2 extends B, C, C2 extends C, D, D2 extends D, E> static method

Free<F, E> map4<F, A, A2 extends A, B, B2 extends B, C, C2 extends C, D, D2 extends D, E>(
  1. Free<F, A2> fa,
  2. Free<F, B2> fb,
  3. Free<F, C2> fc,
  4. Free<F, D2> fd,
  5. E fun(
    1. A a,
    2. B b,
    3. C c,
    4. D d,
    ),
)

Implementation

static Free<F, E> map4<F, A, A2 extends A, B, B2 extends B, C, C2 extends C, D, D2 extends D, E>(Free<F, A2> fa, Free<F, B2> fb, Free<F, C2> fc, Free<F, D2> fd, E fun(A a, B b, C c, D d)) =>
  fa.flatMap((a) => fb.flatMap((b) => fc.flatMap((c) => fd.map((d) => fun(a, b, c, d)))));