Variable reduce`Const`

reduce: FO.Foldable<TreeTypeLambda>["reduce"] = ...

Reduce a tree to a value of type B by applying the given reducer repeatedly over each element and the previous result of the reducer.

Type Param: A

The tree type.

Param: self

The tree being reduced.

Param: initial

The initial value will appear as the previous value in the first iteration of the reducer.

Returns

Reduced value of the same type as the given initial value.