libphonenumber-js/es6/helpers/getCountryByNationalNumber.js

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (it) return (it = it.call(o)).next.bind(it); if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

import Metadata from '../metadata.js';
import getNumberType from './getNumberType.js';
export default function getCountryByNationalNumber(nationalPhoneNumber, _ref) {
  var countries = _ref.countries,
      defaultCountry = _ref.defaultCountry,
      metadata = _ref.metadata;
  // Re-create `metadata` because it will be selecting a `country`.
  metadata = new Metadata(metadata); // const matchingCountries = []

  for (var _iterator = _createForOfIteratorHelperLoose(countries), _step; !(_step = _iterator()).done;) {
    var country = _step.value;
    metadata.country(country); // "Leading digits" patterns are only defined for about 20% of all countries.
    // By definition, matching "leading digits" is a sufficient but not a necessary
    // condition for a phone number to belong to a country.
    // The point of "leading digits" check is that it's the fastest one to get a match.
    // https://gitlab.com/catamphetamine/libphonenumber-js/blob/master/METADATA.md#leading_digits
    // I'd suppose that "leading digits" patterns are mutually exclusive for different countries
    // because of the intended use of that feature.

    if (metadata.leadingDigits()) {
      if (nationalPhoneNumber && nationalPhoneNumber.search(metadata.leadingDigits()) === 0) {
        return country;
      }
    } // Else perform full validation with all of those
    // fixed-line/mobile/etc regular expressions.
    else if (getNumberType({
      phone: nationalPhoneNumber,
      country: country
    }, undefined, metadata.metadata)) {
      // If both the `defaultCountry` and the "main" one match the phone number,
      // don't prefer the `defaultCountry` over the "main" one.
      // https://gitlab.com/catamphetamine/libphonenumber-js/-/issues/154
      return country; // // If the `defaultCountry` is among the `matchingCountries` then return it.
      // if (defaultCountry) {
      // 	if (country === defaultCountry) {
      // 		return country
      // 	}
      // 	matchingCountries.push(country)
      // } else {
      // 	return country
      // }
    }
  } // // Return the first ("main") one of the `matchingCountries`.
  // if (matchingCountries.length > 0) {
  // 	return matchingCountries[0]
  // }

}
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