kick group invite group update

pkg/utils/utils.go

@@ -77,6 +77,44 @@ func Difference(slice1, slice2 []uint32) []uint32 {
 	}
 	return n
 }
+
+//Get the intersection of two slices
+func IntersectString(slice1, slice2 []string) []string {
+	m := make(map[string]bool)
+	n := make([]string, 0)
+	for _, v := range slice1 {
+		m[v] = true
+	}
+	for _, v := range slice2 {
+		flag, _ := m[v]
+		if flag {
+			n = append(n, v)
+		}
+	}
+	return n
+}
+
+//Get the diff of two slices
+func DifferenceString(slice1, slice2 []string) []string {
+	m := make(map[string]bool)
+	n := make([]string, 0)
+	inter := IntersectString(slice1, slice2)
+	for _, v := range inter {
+		m[v] = true
+	}
+	for _, v := range slice1 {
+		if !m[v] {
+			n = append(n, v)
+		}
+	}
+
+	for _, v := range slice2 {
+		if !m[v] {
+			n = append(n, v)
+		}
+	}
+	return n
+}
 func OperationIDGenerator() string {
 	return strconv.FormatInt(time.Now().UnixNano()+int64(rand.Uint32()), 10)
 }