Function Reduce

arrayOperations.go:38–46

Reduce iterates through an array applying the function to each element and the cumulative value and the final state of the cumulative value arr := []string{"cat","dog","cat","cow"} func countAnimals(state map[string]int, animal string) map[string]int { count, ok := state[animal] if !ok {

(arr []T, fn func(A, T) A, init A)

// 	fmt.Println(Reduce[string, map[string]int](arr, countAnimals, initialState))
// 	// output: map["cat":2 "dog":1 "cow":1]
func Reduce[T, A any](arr []T, fn func(A, T) A, init A) A {
	ret := init

	for idx := range arr {
		ret = fn(ret, arr[idx])
	}

	return ret
}

// Filter iterates through an array applying the guard function to each element and returns the elements that pass
//