[Vuejs]-Variable as vee validate v-validate directive value

changing “password” to Object solved the issue. Thanx Giovane for his comment.

"rules": {
    "password": { "required": true, "regex": "/(?=.*\\d)(?=.*[A-Z])(?=.*[a-zA-Z]).{8,}/ }",
    "old_password": "required"
}