foldRightWithIndex<B> method

B foldRightWithIndex<B>(
  1. B b,
  2. B f(
    1. int i,
    2. B acc,
    3. A a
    )
)

Implementation

B foldRightWithIndex<B>(B b, B Function(int i, B acc, A a) f) =>
    foldRight<(B, int)>(
      (b, length() - 1),
      (t, a) => (f(t.$2, t.$1, a), t.$2 - 1),
    ).$1;