update str.map

utils/str/types.go

@@ -12,6 +12,19 @@ var (
 
 type Map map[string]string
 
+func (m Map) Del(keys ...string) Map {
+	for i := range keys {
+		delete(m, keys[i])
+	}
+	return m
+}
+
+func (m Map) Join(kvs Map) Map {
+	for k := range kvs {
+		m[k] = kvs[k]
+	}
+	return m
+}
 func (m Map) Json() []byte {
 	result, err := json.Marshal(m)
 	if err != nil {