How can I link types from @types to my local code?

I've created a method that utilizes validatorjs for validation purposes. Here's an example of the code:

  /**
   * Checks if the string is a mobile phone number (locale options: ['zh-CN', 'zh-TW', 'en-ZA', 'en-AU', 'en-HK',
   * 'pt-PT', 'fr-FR', 'el-GR', 'en-GB', 'en-US', 'en-ZM', 'ru-RU', 'nb-NO', 'nn-NO', 'vi-VN', 'en-NZ']).
   * If the provided value is not a string, it returns false.
   */
  export function isMobilePhone(value: string, locale: string): boolean {
    return (
      typeof value === "string" && vjsIsMobilePhone(value, locale)
    );
  }

When using VSCode, I encountered the following error related to the locale parameter:

[ts] Argument of type 'string' is not assignable to parameter of type 'MobilePhoneLocale'. (parameter) locale: string

The type 'MobilePhoneLocale' is from the package @types/validator. By assigning MobilePhoneLocale to the locale parameter, the method will look like this:

    /**
     * Checks if the string is a mobile phone number (locale options: ['zh-CN', 'zh-TW', 'en-ZA', 'en-AU', 'en-HK',
     * 'pt-PT', 'fr-FR', 'el-GR', 'en-GB', 'en-US', 'en-ZM', 'ru-RU', 'nb-NO', 'nn-NO', 'vi-VN', 'en-NZ']).
     * If the provided value is not a string, it returns false.
     */
    export function isMobilePhone(value: string, locale: MobilePhoneLocale): boolean {
      return (
        typeof value === "string" && vjsIsMobilePhone(value, locale)
      );
    }

However, a new error is displayed by ts:

[ts] Cannot find name 'MobilePhoneLocale

What would be the correct way to implement the type of locale in the above function?

I have also opened an issue on GitHub regarding this problem.

Answer №1

PhoneRegion is defined within the DataValidator namespace, accessible upon importing the module data-validator. It can be referenced as DataValidator.PhoneRegion. Below is an illustration utilizing ts-node:

> import dataValidator = require("data-validator")
{}
> function bar(r: DataValidator.PhoneRegion): DataValidator.PhoneRegion { return r; }
undefined
> bar("US")
'US'

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