28 lines
1.0 KiB
JavaScript
28 lines
1.0 KiB
JavaScript
import Metadata from '../metadata.js'
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/**
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* Returns a list of countries that the phone number could potentially belong to.
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* @param {string} callingCode — Calling code.
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* @param {string} nationalNumber — National (significant) number.
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* @param {object} metadata — Metadata.
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* @return {string[]} A list of possible countries.
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*/
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export default function getPossibleCountriesForNumber(callingCode, nationalNumber, metadata) {
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const _metadata = new Metadata(metadata)
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let possibleCountries = _metadata.getCountryCodesForCallingCode(callingCode)
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if (!possibleCountries) {
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return []
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}
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return possibleCountries.filter((country) => {
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return couldNationalNumberBelongToCountry(nationalNumber, country, metadata)
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})
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}
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function couldNationalNumberBelongToCountry(nationalNumber, country, metadata) {
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const _metadata = new Metadata(metadata)
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_metadata.selectNumberingPlan(country)
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if (_metadata.numberingPlan.possibleLengths().indexOf(nationalNumber.length) >= 0) {
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return true
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}
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return false
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} |