slices/reduce.go

package slices

import "git.tordarus.net/tordarus/gmath"

func Reduce[T, R any](slice []T, reducer func(current R, v T) R) R {
	res := new(R)
	Each(slice, func(v T) {
		*res = reducer(*res, v)
	})
	return *res
}

func SumReducer[N gmath.Number](a, b N) N {
	return a + b
}