Function Union

arrayOperations.go:167–187

Union returns a slice that contains the unique values of all the input slices example #1 a := []int{1, 2, 2, 4, 6} b := []int{2, 4, 5} fmt.Println(Union[int](a, b)) output: []int{1, 2, 4, 5, 6} example #2 fmt.Println(Union[int]([]int{1, 1, 3, 4, 5, 6})) output: []int{1, 3, 4, 5, 6}

(arrs ...[]T)

//  fmt.Println(Union[int]([]int{1, 1, 3, 4, 5, 6}))
//  // output: []int{1, 3, 4, 5, 6}
func Union[T comparable](arrs ...[]T) []T {
	m := make(map[T]struct{})

	var tmpArr []T
	for idx := range arrs {
		tmpArr = Distinct(arrs[idx])

		for idx2 := range tmpArr {
			m[tmpArr[idx2]] = struct{}{}
		}
	}

	ret := make([]T, len(m))
	i := 0
	for k := range m {
		ret[i] = k
		i++
	}

	return ret
}

// Difference returns a slice of values that are only present in one of the input slices
//