Method getValidatorKey

lib/errors/validation-error.ts:177–194

* return a lowercase, trimmed string "key" that identifies the validator. * * Note: the string will be empty if the instance has neither a valid `validatorKey` property nor a valid `validatorName` property * * @param useTypeAsNS controls whether the returned value is "namespace", *

(useTypeAsNS: boolean, NSSeparator: string)

   * @throws {Error}    thrown if NSSeparator is found to be invalid.
   */
  getValidatorKey(useTypeAsNS: boolean, NSSeparator: string): string {
    const useTANS = useTypeAsNS === undefined || !!useTypeAsNS;
    const NSSep = NSSeparator === undefined ? class="st">'.' : NSSeparator;

    const type = this.origin;
    const key = this.validatorKey || this.validatorName;
    const useNS = useTANS && type && ValidationErrorItemOrigin[type];

    if (useNS && (typeof NSSep !== class="st">'string' || !NSSep.length)) {
      throw new Error(class="st">'Invalid namespace separator given, must be a non-empty string');
    }

    if (!(typeof key === class="st">'string' && key.length)) {
      return class="st">'';
    }

    return (useNS ? [this.origin, key].join(NSSep) : key).toLowerCase().trim();
  }
}

/**