Function IsString

Parameters

• __namedParameters: PropertyOptions<string, {
      canBeEmpty?: boolean;
      customValidate?: CustomValidateOptions<unknown>;
      isDate?: {
          format: "date" | "date-time";
      };
      isEmail?: true;
      maxLength?: number;
      minLength?: number;
      pattern?: {
          message?: string | ((validationArguments) => string);
          regex: RegExp;
      };
  }> = {}