/*
 * International Telephone Input v20.3.0
 * https://github.com/jackocnr/intl-tel-input.git
 * Licensed under the MIT license
 */
// wrap in UMD
(function(factory) {
    if (typeof module === "object" && module.exports) module.exports = factory(); else window.intlTelInput = factory();
})(function(undefined) {
    "use strict";
    return function() {
        // Array of country objects for the flag dropdown.
        // Here is the criteria for the plugin to support a given country/territory
        // - It has an iso2 code: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
        // - It has it's own country calling code (it is not a sub-region of another country): https://en.wikipedia.org/wiki/List_of_country_calling_codes
        // - It has a flag in the region-flags project: https://github.com/behdad/region-flags/tree/gh-pages/png
        // - It is supported by libphonenumber (it must be listed on this page): https://github.com/googlei18n/libphonenumber/blob/master/resources/ShortNumberMetadata.xml
        // Each country array has the following information:
        // [
        //    Country name,
        //    iso2 code,
        //    International dial code,
        //    Order (if >1 country with same dial code),
        //    Area codes
        // ]
        var allCountries = [ [ "Afghanistan", "af", "93" ], [ "Albania", "al", "355" ], [ "Algeria", "dz", "213" ], [ "American Samoa", "as", "1", 5, [ "684" ] ], [ "Andorra", "ad", "376" ], [ "Angola", "ao", "244" ], [ "Anguilla", "ai", "1", 6, [ "264" ] ], [ "Antigua & Barbuda", "ag", "1", 7, [ "268" ] ], [ "Argentina", "ar", "54" ], [ "Armenia", "am", "374" ], [ "Aruba", "aw", "297" ], [ "Ascension Island", "ac", "247" ], [ "Australia", "au", "61", 0 ], [ "Austria", "at", "43" ], [ "Azerbaijan", "az", "994" ], [ "Bahamas", "bs", "1", 8, [ "242" ] ], [ "Bahrain", "bh", "973" ], [ "Bangladesh", "bd", "880" ], [ "Barbados", "bb", "1", 9, [ "246" ] ], [ "Belarus", "by", "375" ], [ "Belgium", "be", "32" ], [ "Belize", "bz", "501" ], [ "Benin", "bj", "229" ], [ "Bermuda", "bm", "1", 10, [ "441" ] ], [ "Bhutan", "bt", "975" ], [ "Bolivia", "bo", "591" ], [ "Bosnia & Herzegovina", "ba", "387" ], [ "Botswana", "bw", "267" ], [ "Brazil", "br", "55" ], [ "British Indian Ocean Territory", "io", "246" ], [ "British Virgin Islands", "vg", "1", 11, [ "284" ] ], [ "Brunei", "bn", "673" ], [ "Bulgaria", "bg", "359" ], [ "Burkina Faso", "bf", "226" ], [ "Burundi", "bi", "257" ], [ "Cambodia", "kh", "855" ], [ "Cameroon", "cm", "237" ], [ "Canada", "ca", "1", 1, [ "204", "226", "236", "249", "250", "263", "289", "306", "343", "354", "365", "367", "368", "382", "387", "403", "416", "418", "428", "431", "437", "438", "450", "584", "468", "474", "506", "514", "519", "548", "579", "581", "584", "587", "604", "613", "639", "647", "672", "683", "705", "709", "742", "753", "778", "780", "782", "807", "819", "825", "867", "873", "902", "905" ] ], [ "Cape Verde", "cv", "238" ], [ "Caribbean Netherlands", "bq", "599", 1, [ "3", "4", "7" ] ], [ "Cayman Islands", "ky", "1", 12, [ "345" ] ], [ "Central African Republic", "cf", "236" ], [ "Chad", "td", "235" ], [ "Chile", "cl", "56" ], [ "China", "cn", "86" ], [ "Christmas Island", "cx", "61", 2, [ "89164" ] ], [ "Cocos (Keeling) Islands", "cc", "61", 1, [ "89162" ] ], [ "Colombia", "co", "57" ], [ "Comoros", "km", "269" ], [ "Congo - Brazzaville", "cg", "242" ], [ "Congo - Kinshasa", "cd", "243" ], [ "Cook Islands", "ck", "682" ], [ "Costa Rica", "cr", "506" ], [ "Côte d’Ivoire", "ci", "225" ], [ "Croatia", "hr", "385" ], [ "Cuba", "cu", "53" ], [ "Curaçao", "cw", "599", 0 ], [ "Cyprus", "cy", "357" ], [ "Czech Republic", "cz", "420" ], [ "Denmark", "dk", "45" ], [ "Djibouti", "dj", "253" ], [ "Dominica", "dm", "1", 13, [ "767" ] ], [ "Dominican Republic", "do", "1", 2, [ "809", "829", "849" ] ], [ "Ecuador", "ec", "593" ], [ "Egypt", "eg", "20" ], [ "El Salvador", "sv", "503" ], [ "Equatorial Guinea", "gq", "240" ], [ "Eritrea", "er", "291" ], [ "Estonia", "ee", "372" ], [ "Eswatini", "sz", "268" ], [ "Ethiopia", "et", "251" ], [ "Falkland Islands", "fk", "500" ], [ "Faroe Islands", "fo", "298" ], [ "Fiji", "fj", "679" ], [ "Finland", "fi", "358", 0 ], [ "France", "fr", "33" ], [ "French Guiana", "gf", "594" ], [ "French Polynesia", "pf", "689" ], [ "Gabon", "ga", "241" ], [ "Gambia", "gm", "220" ], [ "Georgia", "ge", "995" ], [ "Germany", "de", "49" ], [ "Ghana", "gh", "233" ], [ "Gibraltar", "gi", "350" ], [ "Greece", "gr", "30" ], [ "Greenland", "gl", "299" ], [ "Grenada", "gd", "1", 14, [ "473" ] ], [ "Guadeloupe", "gp", "590", 0 ], [ "Guam", "gu", "1", 15, [ "671" ] ], [ "Guatemala", "gt", "502" ], [ "Guernsey", "gg", "44", 1, [ "1481", "7781", "7839", "7911" ] ], [ "Guinea", "gn", "224" ], [ "Guinea-Bissau", "gw", "245" ], [ "Guyana", "gy", "592" ], [ "Haiti", "ht", "509" ], [ "Honduras", "hn", "504" ], [ "Hong Kong", "hk", "852" ], [ "Hungary", "hu", "36" ], [ "Iceland", "is", "354" ], [ "India", "in", "91" ], [ "Indonesia", "id", "62" ], [ "Iran", "ir", "98" ], [ "Iraq", "iq", "964" ], [ "Ireland", "ie", "353" ], [ "Isle of Man", "im", "44", 2, [ "1624", "74576", "7524", "7924", "7624" ] ], [ "Israel", "il", "972" ], [ "Italy", "it", "39", 0 ], [ "Jamaica", "jm", "1", 4, [ "876", "658" ] ], [ "Japan", "jp", "81" ], [ "Jersey", "je", "44", 3, [ "1534", "7509", "7700", "7797", "7829", "7937" ] ], [ "Jordan", "jo", "962" ], [ "Kazakhstan", "kz", "7", 1, [ "33", "7" ] ], [ "Kenya", "ke", "254" ], [ "Kiribati", "ki", "686" ], [ "Kosovo", "xk", "383" ], [ "Kuwait", "kw", "965" ], [ "Kyrgyzstan", "kg", "996" ], [ "Laos", "la", "856" ], [ "Latvia", "lv", "371" ], [ "Lebanon", "lb", "961" ], [ "Lesotho", "ls", "266" ], [ "Liberia", "lr", "231" ], [ "Libya", "ly", "218" ], [ "Liechtenstein", "li", "423" ], [ "Lithuania", "lt", "370" ], [ "Luxembourg", "lu", "352" ], [ "Macau", "mo", "853" ], [ "Madagascar", "mg", "261" ], [ "Malawi", "mw", "265" ], [ "Malaysia", "my", "60" ], [ "Maldives", "mv", "960" ], [ "Mali", "ml", "223" ], [ "Malta", "mt", "356" ], [ "Marshall Islands", "mh", "692" ], [ "Martinique", "mq", "596" ], [ "Mauritania", "mr", "222" ], [ "Mauritius", "mu", "230" ], [ "Mayotte", "yt", "262", 1, [ "269", "639" ] ], [ "Mexico", "mx", "52" ], [ "Micronesia", "fm", "691" ], [ "Moldova", "md", "373" ], [ "Monaco", "mc", "377" ], [ "Mongolia", "mn", "976" ], [ "Montenegro", "me", "382" ], [ "Montserrat", "ms", "1", 16, [ "664" ] ], [ "Morocco", "ma", "212", 0 ], [ "Mozambique", "mz", "258" ], [ "Myanmar (Burma)", "mm", "95" ], [ "Namibia", "na", "264" ], [ "Nauru", "nr", "674" ], [ "Nepal", "np", "977" ], [ "Netherlands", "nl", "31" ], [ "New Caledonia", "nc", "687" ], [ "New Zealand", "nz", "64" ], [ "Nicaragua", "ni", "505" ], [ "Niger", "ne", "227" ], [ "Nigeria", "ng", "234" ], [ "Niue", "nu", "683" ], [ "Norfolk Island", "nf", "672" ], [ "North Korea", "kp", "850" ], [ "North Macedonia", "mk", "389" ], [ "Northern Mariana Islands", "mp", "1", 17, [ "670" ] ], [ "Norway", "no", "47", 0 ], [ "Oman", "om", "968" ], [ "Pakistan", "pk", "92" ], [ "Palau", "pw", "680" ], [ "Palestine", "ps", "970" ], [ "Panama", "pa", "507" ], [ "Papua New Guinea", "pg", "675" ], [ "Paraguay", "py", "595" ], [ "Peru", "pe", "51" ], [ "Philippines", "ph", "63" ], [ "Poland", "pl", "48" ], [ "Portugal", "pt", "351" ], [ "Puerto Rico", "pr", "1", 3, [ "787", "939" ] ], [ "Qatar", "qa", "974" ], [ "Réunion", "re", "262", 0 ], [ "Romania", "ro", "40" ], [ "Russia", "ru", "7", 0 ], [ "Rwanda", "rw", "250" ], [ "Samoa", "ws", "685" ], [ "San Marino", "sm", "378" ], [ "São Tomé & Príncipe", "st", "239" ], [ "Saudi Arabia", "sa", "966" ], [ "Senegal", "sn", "221" ], [ "Serbia", "rs", "381" ], [ "Seychelles", "sc", "248" ], [ "Sierra Leone", "sl", "232" ], [ "Singapore", "sg", "65" ], [ "Sint Maarten", "sx", "1", 21, [ "721" ] ], [ "Slovakia", "sk", "421" ], [ "Slovenia", "si", "386" ], [ "Solomon Islands", "sb", "677" ], [ "Somalia", "so", "252" ], [ "South Africa", "za", "27" ], [ "South Korea", "kr", "82" ], [ "South Sudan", "ss", "211" ], [ "Spain", "es", "34" ], [ "Sri Lanka", "lk", "94" ], [ "St Barthélemy", "bl", "590", 1 ], [ "St Helena", "sh", "290" ], [ "St Kitts & Nevis", "kn", "1", 18, [ "869" ] ], [ "St Lucia", "lc", "1", 19, [ "758" ] ], [ "St Martin", "mf", "590", 2 ], [ "St Pierre & Miquelon", "pm", "508" ], [ "St Vincent & Grenadines", "vc", "1", 20, [ "784" ] ], [ "Sudan", "sd", "249" ], [ "Suriname", "sr", "597" ], [ "Svalbard & Jan Mayen", "sj", "47", 1, [ "79" ] ], [ "Sweden", "se", "46" ], [ "Switzerland", "ch", "41" ], [ "Syria", "sy", "963" ], [ "Taiwan", "tw", "886" ], [ "Tajikistan", "tj", "992" ], [ "Tanzania", "tz", "255" ], [ "Thailand", "th", "66" ], [ "Timor-Leste", "tl", "670" ], [ "Togo", "tg", "228" ], [ "Tokelau", "tk", "690" ], [ "Tonga", "to", "676" ], [ "Trinidad & Tobago", "tt", "1", 22, [ "868" ] ], [ "Tunisia", "tn", "216" ], [ "Turkey", "tr", "90" ], [ "Turkmenistan", "tm", "993" ], [ "Turks & Caicos Islands", "tc", "1", 23, [ "649" ] ], [ "Tuvalu", "tv", "688" ], [ "Uganda", "ug", "256" ], [ "Ukraine", "ua", "380" ], [ "United Arab Emirates", "ae", "971" ], [ "United Kingdom", "gb", "44", 0 ], [ "United States", "us", "1", 0 ], [ "Uruguay", "uy", "598" ], [ "US Virgin Islands", "vi", "1", 24, [ "340" ] ], [ "Uzbekistan", "uz", "998" ], [ "Vanuatu", "vu", "678" ], [ "Vatican City", "va", "39", 1, [ "06698" ] ], [ "Venezuela", "ve", "58" ], [ "Vietnam", "vn", "84" ], [ "Wallis & Futuna", "wf", "681" ], [ "Western Sahara", "eh", "212", 1, [ "5288", "5289" ] ], [ "Yemen", "ye", "967" ], [ "Zambia", "zm", "260" ], [ "Zimbabwe", "zw", "263" ], [ "Åland Islands", "ax", "358", 1, [ "18" ] ] ];
        // loop over all of the countries above, restructuring the data to be objects with named keys
        for (var i = 0; i < allCountries.length; i++) {
            var c = allCountries[i];
            allCountries[i] = {
                name: c[0],
                iso2: c[1],
                dialCode: c[2],
                priority: c[3] || 0,
                areaCodes: c[4] || null,
                nodeById: {}
            };
        }
        const intlTelInputGlobals = {
            getInstance: input => {
                const id = input.getAttribute("data-intl-tel-input-id");
                return window.intlTelInputGlobals.instances[id];
            },
            instances: {},
            // using a global like this allows us to mock it in the tests
            documentReady: () => document.readyState === "complete"
        };
        if (typeof window === "object") {
            window.intlTelInputGlobals = intlTelInputGlobals;
        }
        // these vars persist through all instances of the plugin
        let id = 0;
        const defaults = {
            // whether or not to allow the dropdown
            allowDropdown: true,
            // add a placeholder in the input with an example number for the selected country
            autoPlaceholder: "polite",
            // add a country search input at the top of the dropdown
            countrySearch: true,
            // modify the parentClass
            containerClass: "",
            // modify the auto placeholder
            customPlaceholder: null,
            // append menu to specified element
            dropdownContainer: null,
            // don't display these countries
            excludeCountries: [],
            // fix the dropdown width to the input width (rather than being as wide as the longest country name)
            fixDropdownWidth: true,
            // format the number as the user types
            formatAsYouType: true,
            // format the input value during initialisation and on setNumber
            formatOnDisplay: true,
            // geoIp lookup function
            geoIpLookup: null,
            // inject a hidden input with the name returned from this function, and on submit, populate it with the result of getNumber
            hiddenInput: null,
            // internationalise the plugin text e.g. search input placeholder, country names
            i18n: {},
            // initial country
            initialCountry: "",
            // national vs international formatting for numbers e.g. placeholders and displaying existing numbers
            nationalMode: true,
            // display only these countries
            onlyCountries: [],
            // number type to use for placeholders
            placeholderNumberType: "MOBILE",
            // the countries at the top of the list
            preferredCountries: [],
            // option to hide the flags - must be used with showSelectedDialCode, or allowDropdown=false
            showFlags: true,
            // display the international dial code next to the selected flag
            showSelectedDialCode: false,
            // only allow certain chars e.g. a plus followed by numeric digits, and cap at max valid length
            strictMode: false,
            // use full screen popup instead of dropdown for country list
            useFullscreenPopup: typeof navigator !== "undefined" && typeof window !== "undefined" ? // we cannot just test screen size as some smartphones/website meta tags will report desktop
            // resolutions
            // Note: to target Android Mobiles (and not Tablets), we must find 'Android' and 'Mobile'
            /Android.+Mobile|webOS|iPhone|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) || window.innerWidth <= 500 : false,
            // specify the path to the libphonenumber script to enable validation/formatting
            utilsScript: ""
        };
        // https://en.wikipedia.org/wiki/List_of_North_American_Numbering_Plan_area_codes#Non-geographic_area_codes
        const regionlessNanpNumbers = [ "800", "822", "833", "844", "855", "866", "877", "880", "881", "882", "883", "884", "885", "886", "887", "888", "889" ];
        // run a method on each instance of the plugin
        const forEachInstance = method => {
            const {
                instances
            } = window.intlTelInputGlobals;
            Object.values(instances).forEach(instance => instance[method]());
        };
        // this is our plugin class that we will create an instance of
        // eslint-disable-next-line no-unused-vars
        class Iti {
            constructor(input, customOptions = {}) {
                this.id = id++;
                this.telInput = input;
                this.activeItem = null;
                this.highlightedItem = null;
                // process specified options / defaults
                this.options = Object.assign({}, defaults, customOptions);
                this.hadInitialPlaceholder = Boolean(input.getAttribute("placeholder"));
            }
            _init() {
                // if showing fullscreen popup, do not fix the width
                if (this.options.useFullscreenPopup) {
                    this.options.fixDropdownWidth = false;
                }
                // when search enabled, we must fix the width else it would change with different results
                if (this.options.countrySearch && !this.options.useFullscreenPopup) {
                    this.options.fixDropdownWidth = true;
                }
                // force showFlags=true if there's a dropdown and we're not displaying the dial code,
                // as otherwise you just have a down arrow on it's own which doesn't make sense
                const forceShowFlags = this.options.allowDropdown && !this.options.showSelectedDialCode;
                if (!this.options.showFlags && forceShowFlags) {
                    this.options.showFlags = true;
                }
                // on mobile, we want a full screen dropdown, so we must append it to the body
                if (this.options.useFullscreenPopup && !this.options.dropdownContainer) {
                    this.options.dropdownContainer = document.body;
                }
                // check if input has one parent with RTL
                this.isRTL = !!this.telInput.closest("[dir=rtl]");
                // these promises get resolved when their individual requests complete
                // this way the dev can do something like iti.promise.then(...) to know when all requests are
                // complete
                const autoCountryPromise = new Promise((resolve, reject) => {
                    this.resolveAutoCountryPromise = resolve;
                    this.rejectAutoCountryPromise = reject;
                });
                const utilsScriptPromise = new Promise((resolve, reject) => {
                    this.resolveUtilsScriptPromise = resolve;
                    this.rejectUtilsScriptPromise = reject;
                });
                this.promise = Promise.all([ autoCountryPromise, utilsScriptPromise ]);
                // in various situations there could be no country selected initially, but we need to be able
                // to assume this variable exists
                this.selectedCountryData = {};
                // process all the data: onlyCountries, excludeCountries, preferredCountries etc
                this._processCountryData();
                // generate the markup
                this._generateMarkup();
                // set the initial state of the input value and the selected flag
                this._setInitialState();
                // start all of the event listeners: input keydown, selectedFlag click
                this._initListeners();
                // utils script, and auto country
                this._initRequests();
            }
            /********************
   *  PRIVATE METHODS
   ********************/
            // prepare all of the country data, including onlyCountries, excludeCountries and
            // preferredCountries options
            _processCountryData() {
                // process onlyCountries or excludeCountries array if present
                this._processAllCountries();
                // generate this.dialCodes and this.dialCodeToIso2Map
                this._processDialCodes();
                // process the preferredCountries
                this._processPreferredCountries();
                // translate country names according to i18n option
                this._translateCountryNames();
                // sort countries by name
                if (this.options.onlyCountries.length || this.options.i18n) {
                    this.countries.sort(this._countryNameSort);
                }
            }
            // add a dial code to this.dialCodeToIso2Map
            _addToDialCodeMap(iso2, dialCode, priority) {
                if (dialCode.length > this.dialCodeMaxLen) {
                    this.dialCodeMaxLen = dialCode.length;
                }
                if (!this.dialCodeToIso2Map.hasOwnProperty(dialCode)) {
                    this.dialCodeToIso2Map[dialCode] = [];
                }
                // bail if we already have this country for this dialCode
                for (let i = 0; i < this.dialCodeToIso2Map[dialCode].length; i++) {
                    if (this.dialCodeToIso2Map[dialCode][i] === iso2) {
                        return;
                    }
                }
                // check for undefined as 0 is falsy
                const index = priority !== undefined ? priority : this.dialCodeToIso2Map[dialCode].length;
                this.dialCodeToIso2Map[dialCode][index] = iso2;
            }
            // process onlyCountries or excludeCountries array if present
            _processAllCountries() {
                if (this.options.onlyCountries.length) {
                    const lowerCaseOnlyCountries = this.options.onlyCountries.map(country => country.toLowerCase());
                    this.countries = allCountries.filter(country => lowerCaseOnlyCountries.indexOf(country.iso2) > -1);
                } else if (this.options.excludeCountries.length) {
                    const lowerCaseExcludeCountries = this.options.excludeCountries.map(country => country.toLowerCase());
                    this.countries = allCountries.filter(country => lowerCaseExcludeCountries.indexOf(country.iso2) === -1);
                } else {
                    this.countries = allCountries;
                }
            }
            // Translate Countries by object literal provided on config
            _translateCountryNames() {
                for (let i = 0; i < this.countries.length; i++) {
                    const iso2 = this.countries[i].iso2.toLowerCase();
                    if (this.options.i18n.hasOwnProperty(iso2)) {
                        this.countries[i].name = this.options.i18n[iso2];
                    }
                }
            }
            // sort by country name
            _countryNameSort(a, b) {
                if (a.name < b.name) {
                    return -1;
                }
                if (a.name > b.name) {
                    return 1;
                }
                return 0;
            }
            // generate this.dialCodes and this.dialCodeToIso2Map
            _processDialCodes() {
                // here we store just dial codes, where the key is the dial code, and the value is true
                // e.g. { 1: true, 7: true, 20: true, ... }
                this.dialCodes = {};
                this.dialCodeMaxLen = 0;
                // here we map dialCodes (inc both dialCode and dialCode+areaCode) to iso2 codes
                /* e.g.
     * {
     *   1: [ 'us', 'ca', ... ],    # all NANP countries
     *   12: [ 'us', 'ca', ... ],   # subset of NANP countries
     *   120: [ 'us', 'ca' ],       # just US and Canada
     *   1204: [ 'ca' ],            # only Canada
     *   ...
     *  }
     */
                this.dialCodeToIso2Map = {};
                // first: add dial codes
                for (let i = 0; i < this.countries.length; i++) {
                    const c = this.countries[i];
                    if (!this.dialCodes[c.dialCode]) {
                        this.dialCodes[c.dialCode] = true;
                    }
                    this._addToDialCodeMap(c.iso2, c.dialCode, c.priority);
                }
                // next: add area codes
                // this is a second loop over countries, to make sure we have all of the "root" countries
                // already in the map, so that we can access them, as each time we add an area code substring
                // to the map, we also need to include the "root" country's code, as that also matches
                for (let i = 0; i < this.countries.length; i++) {
                    const c = this.countries[i];
                    // area codes
                    if (c.areaCodes) {
                        const rootIso2Code = this.dialCodeToIso2Map[c.dialCode][0];
                        // for each area code
                        for (let j = 0; j < c.areaCodes.length; j++) {
                            const areaCode = c.areaCodes[j];
                            // for each digit in the area code to add all partial matches as well
                            for (let k = 1; k < areaCode.length; k++) {
                                const partialDialCode = c.dialCode + areaCode.substr(0, k);
                                // start with the root country, as that also matches this dial code
                                this._addToDialCodeMap(rootIso2Code, partialDialCode);
                                this._addToDialCodeMap(c.iso2, partialDialCode);
                            }
                            // add the full area code
                            this._addToDialCodeMap(c.iso2, c.dialCode + areaCode);
                        }
                    }
                }
            }
            // process preferred countries - iterate through the preferences, fetching the country data for
            // each one
            _processPreferredCountries() {
                this.preferredCountries = [];
                for (let i = 0; i < this.options.preferredCountries.length; i++) {
                    const iso2 = this.options.preferredCountries[i].toLowerCase();
                    const countryData = this._getCountryData(iso2, true);
                    if (countryData) {
                        this.preferredCountries.push(countryData);
                    }
                }
            }
            // create a DOM element
            _createEl(name, attrs, container) {
                const el = document.createElement(name);
                if (attrs) {
                    Object.entries(attrs).forEach(([ key, value ]) => el.setAttribute(key, value));
                }
                if (container) {
                    container.appendChild(el);
                }
                return el;
            }
            // generate all of the markup for the plugin: the selected flag overlay, and the dropdown
            _generateMarkup() {
                this.telInput.classList.add("iti__tel-input");
                // if autocomplete does not exist on the element and its form, then
                // prevent autocomplete as there's no safe, cross-browser event we can react to, so it can
                // easily put the plugin in an inconsistent state e.g. the wrong flag selected for the
                // autocompleted number, which on submit could mean wrong number is saved
                if (!this.telInput.hasAttribute("autocomplete") && !(this.telInput.form && this.telInput.form.hasAttribute("autocomplete"))) {
                    this.telInput.setAttribute("autocomplete", "off");
                }
                const {
                    allowDropdown,
                    showSelectedDialCode,
                    showFlags,
                    containerClass,
                    hiddenInput,
                    dropdownContainer,
                    fixDropdownWidth,
                    useFullscreenPopup,
                    countrySearch,
                    i18n
                } = this.options;
                // containers (mostly for positioning)
                let parentClass = "iti";
                if (allowDropdown) {
                    parentClass += " iti--allow-dropdown";
                }
                if (showSelectedDialCode) {
                    parentClass += " iti--show-selected-dial-code";
                }
                if (showFlags) {
                    parentClass += " iti--show-flags";
                }
                if (containerClass) {
                    parentClass += ` ${containerClass}`;
                }
                if (!useFullscreenPopup) {
                    parentClass += " iti--inline-dropdown";
                }
                const wrapper = this._createEl("div", {
                    class: parentClass
                });
                this.telInput.parentNode.insertBefore(wrapper, this.telInput);
                // if we're showing flags or dial codes, we need the flags container etc
                if (showFlags || showSelectedDialCode) {
                    this.flagsContainer = this._createEl("div", {
                        class: "iti__flag-container"
                    }, wrapper);
                    // selected flag (displayed on left of input while allowDropdown is enabled, otherwise to right)
                    // when countrySearch disabled: using Aria tags for "Select-Only Combobox Example"
                    // https://www.w3.org/WAI/ARIA/apg/patterns/combobox/examples/combobox-select-only/
                    this.selectedFlag = this._createEl("div", {
                        class: "iti__selected-flag",
                        ...allowDropdown && {
                            role: "button",
                            "aria-expanded": "false",
                            "aria-label": this.options.i18n.selectedCountryAriaLabel || "Selected country",
                            "aria-haspopup": countrySearch ? "true" : "listbox",
                            "aria-controls": countrySearch ? `iti-${this.id}__dropdown-content` : `iti-${this.id}__country-listbox`,
                            ...countrySearch || {
                                role: "combobox"
                            }
                        }
                    }, this.flagsContainer);
                    // we now include the selected flag element even when showFlags is disabled,
                    // as need to show globe icon for showSelectedDialCode empty state
                    this.selectedFlagInner = this._createEl("div", null, this.selectedFlag);
                    this.selectedFlagA11yText = this._createEl("span", {
                        class: "iti__a11y-text"
                    }, this.selectedFlagInner);
                }
                wrapper.appendChild(this.telInput);
                if (this.selectedFlag && this.telInput.disabled) {
                    this.selectedFlag.setAttribute("aria-disabled", "true");
                }
                if (showSelectedDialCode) {
                    this.selectedDialCode = this._createEl("div", {
                        class: "iti__selected-dial-code"
                    }, this.selectedFlag);
                }
                if (allowDropdown) {
                    if (!this.telInput.disabled) {
                        // make element focusable and tab navigable
                        this.selectedFlag.setAttribute("tabindex", "0");
                    }
                    this.dropdownArrow = this._createEl("div", {
                        class: "iti__arrow",
                        "aria-hidden": "true"
                    }, this.selectedFlag);
                    const extraClasses = fixDropdownWidth ? "" : "iti--flexible-dropdown-width";
                    this.dropdownContent = this._createEl("div", {
                        id: `iti-${this.id}__dropdown-content`,
                        class: `iti__dropdown-content iti__hide ${extraClasses}`
                    });
                    if (countrySearch) {
                        this.searchInput = this._createEl("input", {
                            type: "text",
                            class: "iti__search-input",
                            placeholder: i18n.searchPlaceholder || "Search",
                            role: "combobox",
                            "aria-expanded": "true",
                            "aria-label": i18n.searchPlaceholder || "Search",
                            "aria-controls": `iti-${this.id}__country-listbox`,
                            "aria-autocomplete": "list",
                            autocomplete: "off"
                        }, this.dropdownContent);
                        this.searchResultsA11yText = this._createEl("span", {
                            class: "iti__a11y-text"
                        }, this.dropdownContent);
                    }
                    // country list: preferred countries, then divider, then all countries
                    this.countryList = this._createEl("ul", {
                        class: "iti__country-list",
                        id: `iti-${this.id}__country-listbox`,
                        role: "listbox",
                        "aria-label": i18n.countryListAriaLabel || "List of countries"
                    }, this.dropdownContent);
                    if (this.preferredCountries.length && !countrySearch) {
                        this._appendListItems(this.preferredCountries, "iti__preferred", true);
                        this._createEl("li", {
                            class: "iti__divider",
                            "aria-hidden": "true"
                        }, this.countryList);
                    }
                    this._appendListItems(this.countries, "iti__standard");
                    if (countrySearch) {
                        this._updateSearchResultsText();
                    }
                    // create dropdownContainer markup
                    if (dropdownContainer) {
                        let dropdownClasses = "iti iti--container";
                        if (useFullscreenPopup) {
                            dropdownClasses += " iti--fullscreen-popup";
                        } else {
                            dropdownClasses += " iti--inline-dropdown";
                        }
                        if (countrySearch) {
                            dropdownClasses += " iti--country-search";
                        }
                        this.dropdown = this._createEl("div", {
                            class: dropdownClasses
                        });
                        this.dropdown.appendChild(this.dropdownContent);
                    } else {
                        this.flagsContainer.appendChild(this.dropdownContent);
                    }
                }
                if (hiddenInput) {
                    const telInputName = this.telInput.getAttribute("name");
                    const names = hiddenInput(telInputName);
                    if (names.phone) {
                        // Create hidden input for the full international number
                        this.hiddenInput = this._createEl("input", {
                            type: "hidden",
                            name: names.phone
                        });
                        wrapper.appendChild(this.hiddenInput);
                    }
                    if (names.country) {
                        // Create hidden input for the selected country iso2 code
                        this.hiddenInputCountry = this._createEl("input", {
                            type: "hidden",
                            name: names.country
                        });
                        wrapper.appendChild(this.hiddenInputCountry);
                    }
                }
            }
            // for each of the passed countries: add a country <li> to the countryList <ul> container
            _appendListItems(countries, className, preferred) {
                for (let i = 0; i < countries.length; i++) {
                    const c = countries[i];
                    const idSuffix = preferred ? "-preferred" : "";
                    const listItem = this._createEl("li", {
                        id: `iti-${this.id}__item-${c.iso2}${idSuffix}`,
                        class: `iti__country ${className}`,
                        tabindex: "-1",
                        role: "option",
                        "data-dial-code": c.dialCode,
                        "data-country-code": c.iso2,
                        "aria-selected": "false"
                    }, this.countryList);
                    // store this for later use e.g. country search filtering
                    c.nodeById[this.id] = listItem;
                    let content = "";
                    // add the flag
                    if (this.options.showFlags) {
                        content += `<div class='iti__flag-box'><div class='iti__flag iti__${c.iso2}'></div></div>`;
                    }
                    // and the country name and dial code
                    content += `<span class='iti__country-name'>${c.name}</span>`;
                    content += `<span class='iti__dial-code'>+${c.dialCode}</span>`;
                    listItem.insertAdjacentHTML("beforeend", content);
                }
            }
            // set the initial state of the input value and the selected flag by:
            // 1. extracting a dial code from the given number
            // 2. using explicit initialCountry
            // 3. picking the first preferred country
            // 4. picking the first country
            _setInitialState(overrideAutoCountry = false) {
                // fix firefox bug: when first load page (with input with value set to number with intl dial
                // code) and initialising plugin removes the dial code from the input, then refresh page,
                // and we try to init plugin again but this time on number without dial code so get grey flag
                const attributeValue = this.telInput.getAttribute("value");
                const inputValue = this.telInput.value;
                const useAttribute = attributeValue && attributeValue.charAt(0) === "+" && (!inputValue || inputValue.charAt(0) !== "+");
                const val = useAttribute ? attributeValue : inputValue;
                const dialCode = this._getDialCode(val);
                const isRegionlessNanp = this._isRegionlessNanp(val);
                const {
                    initialCountry
                } = this.options;
                // if we already have a dial code, and it's not a regionlessNanp, we can go ahead and set the
                // flag, else fall back to the default country
                if (dialCode && !isRegionlessNanp) {
                    this._updateFlagFromNumber(val);
                } else if (initialCountry !== "auto" || overrideAutoCountry) {
                    const lowerInitialCountry = initialCountry ? initialCountry.toLowerCase() : "";
                    const isValidInitialCountry = lowerInitialCountry && this._getCountryData(lowerInitialCountry, true);
                    // see if we should select a flag
                    if (isValidInitialCountry) {
                        this._setCountry(lowerInitialCountry);
                    } else {
                        if (dialCode && isRegionlessNanp) {
                            // has intl dial code, is regionless nanp, and no initialCountry, so default to US
                            this._setCountry("us");
                        } else {
                            // display the empty state (globe icon)
                            this._setCountry();
                        }
                    }
                }
                // NOTE: if initialCountry is set to auto, that will be handled separately
                // format - note this wont be run after _updateDialCode as that's only called if no val
                if (val) {
                    this._updateValFromNumber(val);
                }
            }
            // initialise the main event listeners: input keyup, and click selected flag
            _initListeners() {
                this._initTelInputListeners();
                if (this.options.allowDropdown) {
                    this._initDropdownListeners();
                }
                if ((this.hiddenInput || this.hiddenInputCountry) && this.telInput.form) {
                    this._initHiddenInputListener();
                }
            }
            // update hidden input on form submit
            _initHiddenInputListener() {
                this._handleHiddenInputSubmit = () => {
                    if (this.hiddenInput) {
                        this.hiddenInput.value = this.getNumber();
                    }
                    if (this.hiddenInputCountry) {
                        this.hiddenInputCountry.value = this.getSelectedCountryData().iso2;
                    }
                };
                this.telInput.form.addEventListener("submit", this._handleHiddenInputSubmit);
            }
            // initialise the dropdown listeners
            _initDropdownListeners() {
                // hack for input nested inside label (which is valid markup): clicking the selected-flag to
                // open the dropdown would then automatically trigger a 2nd click on the input which would
                // close it again
                this._handleLabelClick = e => {
                    // if the dropdown is closed, then focus the input, else ignore the click
                    if (this.dropdownContent.classList.contains("iti__hide")) {
                        this.telInput.focus();
                    } else {
                        e.preventDefault();
                    }
                };
                const label = this.telInput.closest("label");
                if (label) {
                    label.addEventListener("click", this._handleLabelClick);
                }
                // toggle country dropdown on click
                this._handleClickSelectedFlag = () => {
                    // only intercept this event if we're opening the dropdown
                    // else let it bubble up to the top ("click-off-to-close" listener)
                    // we cannot just stopPropagation as it may be needed to close another instance
                    if (this.dropdownContent.classList.contains("iti__hide") && !this.telInput.disabled && !this.telInput.readOnly) {
                        this._openDropdown();
                    }
                };
                this.selectedFlag.addEventListener("click", this._handleClickSelectedFlag);
                // open dropdown if selected flag is focused and they press up/down/space/enter
                this._handleFlagsContainerKeydown = e => {
                    const isDropdownHidden = this.dropdownContent.classList.contains("iti__hide");
                    if (isDropdownHidden && [ "ArrowUp", "ArrowDown", " ", "Enter" ].includes(e.key)) {
                        // prevent form from being submitted if "ENTER" was pressed
                        e.preventDefault();
                        // prevent event from being handled again by document
                        e.stopPropagation();
                        this._openDropdown();
                    }
                    // allow navigation from dropdown to input on TAB
                    if (e.key === "Tab") {
                        this._closeDropdown();
                    }
                };
                this.flagsContainer.addEventListener("keydown", this._handleFlagsContainerKeydown);
            }
            // init many requests: utils script / geo ip lookup
            _initRequests() {
                // if the user has specified the path to the utils script, fetch it on window.load, else resolve
                if (this.options.utilsScript && !window.intlTelInputUtils) {
                    // if the plugin is being initialised after the window.load event has already been fired
                    if (window.intlTelInputGlobals.documentReady()) {
                        window.intlTelInputGlobals.loadUtils(this.options.utilsScript);
                    } else {
                        // wait until the load event so we don't block any other requests e.g. the flags image
                        window.addEventListener("load", () => {
                            window.intlTelInputGlobals.loadUtils(this.options.utilsScript);
                        });
                    }
                } else {
                    this.resolveUtilsScriptPromise();
                }
                // dont bother with IP lookup if we already have a selected country
                if (this.options.initialCountry === "auto" && !this.selectedCountryData.iso2) {
                    this._loadAutoCountry();
                } else {
                    this.resolveAutoCountryPromise();
                }
            }
            // perform the geo ip lookup
            _loadAutoCountry() {
                // 3 options:
                // 1) already loaded (we're done)
                // 2) not already started loading (start)
                // 3) already started loading (do nothing - just wait for loading callback to fire)
                if (window.intlTelInputGlobals.autoCountry) {
                    this.handleAutoCountry();
                } else if (!window.intlTelInputGlobals.startedLoadingAutoCountry) {
                    // don't do this twice!
                    window.intlTelInputGlobals.startedLoadingAutoCountry = true;
                    if (typeof this.options.geoIpLookup === "function") {
                        this.options.geoIpLookup((iso2 = "") => {
                            const iso2Lower = iso2.toLowerCase();
                            const isValidIso2 = iso2Lower && this._getCountryData(iso2Lower, true);
                            if (isValidIso2) {
                                window.intlTelInputGlobals.autoCountry = iso2Lower;
                                // tell all instances the auto country is ready
                                // TODO: this should just be the current instances
                                // UPDATE: use setTimeout in case their geoIpLookup function calls this callback straight
                                // away (e.g. if they have already done the geo ip lookup somewhere else). Using
                                // setTimeout means that the current thread of execution will finish before executing
                                // this, which allows the plugin to finish initialising.
                                setTimeout(() => forEachInstance("handleAutoCountry"));
                            } else {
                                this._setInitialState(true);
                                forEachInstance("rejectAutoCountryPromise");
                            }
                        }, () => forEachInstance("rejectAutoCountryPromise"));
                    }
                }
            }
            // initialize the tel input listeners
            _initTelInputListeners() {
                const {
                    strictMode,
                    formatAsYouType
                } = this.options;
                let userOverrideFormatting = false;
                // update flag on input event
                this._handleInputEvent = e => {
                    if (this._updateFlagFromNumber(this.telInput.value)) {
                        this._triggerCountryChange();
                    }
                    // if user types their own formatting char (not a plus or a numeric), or they paste something, then set the override
                    const isFormattingChar = e && e.data && /[^+0-9]/.test(e.data);
                    const isPaste = e && e.inputType === "insertFromPaste" && this.telInput.value;
                    if (isFormattingChar || isPaste && !strictMode) {
                        userOverrideFormatting = true;
                    }
                    // if user removes all formatting chars, then reset the override
                     else if (!/[^+0-9]/.test(this.telInput.value)) {
                        userOverrideFormatting = false;
                    }
                    // handle FAYT, unless userOverrideFormatting
                    if (formatAsYouType && !userOverrideFormatting) {
                        // maintain caret position after reformatting
                        const currentCaretPos = this.telInput.selectionStart;
                        const valueBeforeCaret = this.telInput.value.substring(0, currentCaretPos);
                        const relevantCharsBeforeCaret = valueBeforeCaret.replace(/[^+0-9]/g, "").length;
                        const isDeleteForwards = e && e.inputType === "deleteContentForward";
                        const formattedValue = this._formatNumberAsYouType();
                        const newCaretPos = this._translateCursorPosition(relevantCharsBeforeCaret, formattedValue, currentCaretPos, isDeleteForwards);
                        this.telInput.value = formattedValue;
                        this.telInput.setSelectionRange(newCaretPos, newCaretPos);
                    }
                };
                // this handles individual key presses as well as cut/paste events
                // the advantage of the "input" event over "keyup" etc is that "input" only fires when the value changes,
                // whereas "keyup" fires even for shift key, arrow key presses etc
                this.telInput.addEventListener("input", this._handleInputEvent);
                if (strictMode) {
                    this._handleKeydownEvent = e => {
                        // only ignore actual character presses, rather than ctrl, alt, shift, command, arrow keys, delete/backspace, cut/copy/paste etc
                        if (e.key.length === 1 && !e.altKey && !e.ctrlKey && !e.metaKey) {
                            const isInitialPlus = this.telInput.selectionStart === 0 && e.key === "+";
                            const isNumeric = /^[0-9]$/.test(e.key);
                            const isAllowedChar = isInitialPlus || isNumeric;
                            const fullNumber = this._getFullNumber();
                            const coreNumber = intlTelInputUtils.getCoreNumber(fullNumber, this.selectedCountryData.iso2);
                            const hasReachedMaxLength = this.maxCoreNumberLength && coreNumber.length >= this.maxCoreNumberLength;
                            if (!isAllowedChar || hasReachedMaxLength) {
                                e.preventDefault();
                            }
                        }
                    };
                    this.telInput.addEventListener("keydown", this._handleKeydownEvent);
                }
            }
            // iterate through the formattedValue until hit the right number of relevant chars
            _translateCursorPosition(relevantChars, formattedValue, prevCaretPos, isDeleteForwards) {
                // if the first char is a formatting char, and they backspace delete it:
                // cursor should stay at the start (pos 0), rather than stick to the first digit (pos 1)
                if (prevCaretPos === 0 && !isDeleteForwards) {
                    return 0;
                }
                let count = 0;
                for (let i = 0; i < formattedValue.length; i++) {
                    if (/[+0-9]/.test(formattedValue[i])) {
                        count++;
                    }
                    // normal case: stop when you hit the right number of relevant chars
                    // (cursor will be just after the final relevant char)
                    if (count === relevantChars && !isDeleteForwards) {
                        return i + 1;
                    }
                    // spacial case: delete forwards (fn + delete on a mac):
                    // wait until hit one extra relevant char, and put the cursor just before it (after any formatting chars)
                    if (isDeleteForwards && count === relevantChars + 1) {
                        return i;
                    }
                }
                return formattedValue.length;
            }
            // adhere to the input's maxlength attr
            _cap(number) {
                const max = this.telInput.getAttribute("maxlength");
                return max && number.length > max ? number.substr(0, max) : number;
            }
            // clear the input if it just contains a dial code
            _removeEmptyDialCode() {
                if (this.telInput.value.charAt(0) === "+") {
                    const numeric = this._getNumeric(this.telInput.value);
                    // if just a plus, or if just a dial code
                    if (!numeric || this.selectedCountryData.dialCode === numeric) {
                        this.telInput.value = "";
                    }
                }
            }
            // extract the numeric digits from the given string
            _getNumeric(s) {
                return s.replace(/\D/g, "");
            }
            // trigger a custom event on the input
            _trigger(name) {
                const e = new Event(name, {
                    bubbles: true,
                    cancelable: true
                });
                this.telInput.dispatchEvent(e);
            }
            // open the dropdown
            _openDropdown() {
                const {
                    fixDropdownWidth,
                    countrySearch
                } = this.options;
                if (fixDropdownWidth) {
                    this.dropdownContent.style.width = `${this.telInput.offsetWidth}px`;
                }
                this.dropdownContent.classList.remove("iti__hide");
                this.selectedFlag.setAttribute("aria-expanded", "true");
                this._setDropdownPosition();
                // if we have previously selected a country (and countrySearch is disabled), then highlight that item and scroll to it
                // else highlight the first item and scroll to top (even if countrySearch is disabled e.g. on init, showing globe icon)
                if (this.activeItem && !countrySearch) {
                    // update highlighting and scroll to active list item
                    this._highlightListItem(this.activeItem, false);
                    this._scrollTo(this.activeItem, true);
                } else {
                    // start by highlighting the first item in the list
                    const {
                        firstElementChild
                    } = this.countryList;
                    if (firstElementChild) {
                        this._highlightListItem(firstElementChild, false);
                        this.countryList.scrollTop = 0;
                    }
                    if (countrySearch) {
                        this.searchInput.focus();
                    }
                }
                // bind all the dropdown-related listeners: mouseover, click, click-off, keydown
                this._bindDropdownListeners();
                // update the arrow
                this.dropdownArrow.classList.add("iti__arrow--up");
                this._trigger("open:countrydropdown");
            }
            // make sure the el has the className or not, depending on the value of shouldHaveClass
            _toggleClass(el, className, shouldHaveClass) {
                if (shouldHaveClass && !el.classList.contains(className)) {
                    el.classList.add(className);
                } else if (!shouldHaveClass && el.classList.contains(className)) {
                    el.classList.remove(className);
                }
            }
            // decide if should position dropdown above or below input (depends on position within viewport, and scroll)
            _setDropdownPosition() {
                if (this.options.dropdownContainer) {
                    this.options.dropdownContainer.appendChild(this.dropdown);
                }
                if (!this.options.useFullscreenPopup) {
                    const pos = this.telInput.getBoundingClientRect();
                    // windowTop from https://stackoverflow.com/a/14384091/217866
                    const windowTop = document.documentElement.scrollTop;
                    const inputTop = pos.top + windowTop;
                    const dropdownHeight = this.dropdownContent.offsetHeight;
                    // dropdownFitsBelow = (dropdownBottom < windowBottom)
                    const dropdownFitsBelow = inputTop + this.telInput.offsetHeight + dropdownHeight < windowTop + window.innerHeight;
                    const dropdownFitsAbove = inputTop - dropdownHeight > windowTop;
                    // dont allow positioning above when country search enabled as the search box jumps around as you filter countries
                    const positionDropdownAboveInput = !this.options.countrySearch && !dropdownFitsBelow && dropdownFitsAbove;
                    // by default, the dropdown will be below the input. If we want to position it above the
                    // input, we add the dropup class.
                    this._toggleClass(this.dropdownContent, "iti__dropdown-content--dropup", positionDropdownAboveInput);
                    // if dropdownContainer is enabled, calculate postion
                    if (this.options.dropdownContainer) {
                        // if we want to position the dropdown below the input, we need to add the input height to the top value
                        const extraTop = positionDropdownAboveInput ? 0 : this.telInput.offsetHeight;
                        // calculate placement
                        this.dropdown.style.top = `${inputTop + extraTop}px`;
                        this.dropdown.style.left = `${pos.left + document.body.scrollLeft}px`;
                        // close menu on window scroll
                        this._handleWindowScroll = () => this._closeDropdown();
                        window.addEventListener("scroll", this._handleWindowScroll);
                    }
                }
            }
            // we only bind dropdown listeners when the dropdown is open
            _bindDropdownListeners() {
                // when mouse over a list item, just highlight that one
                // we add the class "highlight", so if they hit "enter" we know which one to select
                this._handleMouseoverCountryList = e => {
                    // handle event delegation, as we're listening for this event on the countryList
                    const listItem = e.target.closest(".iti__country");
                    if (listItem) {
                        this._highlightListItem(listItem, false);
                    }
                };
                this.countryList.addEventListener("mouseover", this._handleMouseoverCountryList);
                // listen for country selection
                this._handleClickCountryList = e => {
                    const listItem = e.target.closest(".iti__country");
                    if (listItem) {
                        this._selectListItem(listItem);
                    }
                };
                this.countryList.addEventListener("click", this._handleClickCountryList);
                // click off to close
                // (except when this initial opening click is bubbling up)
                // we cannot just stopPropagation as it may be needed to close another instance
                let isOpening = true;
                this._handleClickOffToClose = () => {
                    if (!isOpening) {
                        this._closeDropdown();
                    }
                    isOpening = false;
                };
                document.documentElement.addEventListener("click", this._handleClickOffToClose);
                // listen for up/down scrolling, enter to select, or escape to close
                // use keydown as keypress doesn't fire for non-char keys and we want to catch if they
                // just hit down and hold it to scroll down (no keyup event).
                // listen on the document because that's where key events are triggered if no input has focus
                let query = "";
                let queryTimer = null;
                this._handleKeydownOnDropdown = e => {
                    // prevent down key from scrolling the whole page,
                    // and enter key from submitting a form etc
                    if ([ "ArrowUp", "ArrowDown", "Enter", "Escape" ].includes(e.key)) {
                        e.preventDefault();
                        e.stopPropagation();
                        // up and down to navigate
                        if (e.key === "ArrowUp" || e.key === "ArrowDown") {
                            this._handleUpDownKey(e.key);
                        }
                        // enter to select
                         else if (e.key === "Enter") {
                            this._handleEnterKey();
                        }
                        // esc to close
                         else if (e.key === "Escape") {
                            this._closeDropdown();
                        }
                    }
                    // alpha chars to perform search
                    // regex allows one latin alpha char or space, based on https://stackoverflow.com/a/26900132/217866)
                    if (!this.options.countrySearch && /^[a-zA-Z\u00c0-\u00ffа-\u044f\u0410-\u042f ]$/.test(e.key)) {
                        e.stopPropagation();
                        // jump to countries that start with the query string
                        if (queryTimer) {
                            clearTimeout(queryTimer);
                        }
                        query += e.key.toLowerCase();
                        this._searchForCountry(query);
                        // if the timer hits 1 second, reset the query
                        queryTimer = setTimeout(() => {
                            query = "";
                        }, 1e3);
                    }
                };
                document.addEventListener("keydown", this._handleKeydownOnDropdown);
                if (this.options.countrySearch) {
                    const doFilter = () => {
                        const inputQuery = this.searchInput.value.trim();
                        if (inputQuery) {
                            this._filterCountries(inputQuery);
                        } else {
                            this._filterCountries("", true);
                        }
                    };
                    let keyupTimer = null;
                    this._handleSearchChange = () => {
                        // filtering country nodes is expensive (lots of DOM manipulation), so rate limit it
                        if (keyupTimer) {
                            clearTimeout(keyupTimer);
                        }
                        keyupTimer = setTimeout(() => {
                            doFilter();
                            keyupTimer = null;
                        }, 100);
                    };
                    this.searchInput.addEventListener("input", this._handleSearchChange);
                    // stop propagation on search input click, so doesn't trigger click-off-to-close listener
                    this.searchInput.addEventListener("click", e => e.stopPropagation());
                }
            }
            // turns "Réunion" into "Reunion"
            // from https://stackoverflow.com/a/37511463
            _normaliseString(s = "") {
                return s.normalize("NFD").replace(/[\u0300-\u036f]/g, "").toLowerCase();
            }
            _filterCountries(query, isReset = false) {
                let isFirst = true;
                this.countryList.innerHTML = "";
                const normalisedQuery = this._normaliseString(query);
                for (let i = 0; i < this.countries.length; i++) {
                    const c = this.countries[i];
                    const normalisedCountryName = this._normaliseString(c.name);
                    const fullDialCode = `+${c.dialCode}`;
                    if (isReset || normalisedCountryName.includes(normalisedQuery) || fullDialCode.includes(normalisedQuery) || c.iso2.includes(normalisedQuery)) {
                        this.countryList.appendChild(c.nodeById[this.id]);
                        // highlight the first item
                        if (isFirst) {
                            this._highlightListItem(c.nodeById[this.id], false);
                            isFirst = false;
                        }
                    }
                }
                // scroll to top (useful if user had previously scrolled down)
                this.countryList.scrollTop = 0;
                this._updateSearchResultsText();
            }
            // update search results text (for a11y)
            _updateSearchResultsText() {
                const {
                    i18n
                } = this.options;
                const count = this.countryList.childElementCount;
                let searchText;
                if (count === 0) {
                    searchText = i18n.zeroSearchResults || "No results found";
                } else if (count === 1) {
                    searchText = i18n.oneSearchResult || "1 result found";
                } else {
                    // eslint-disable-next-line no-template-curly-in-string
                    searchText = i18n.multipleSearchResults ? i18n.multipleSearchResults.replace("${count}", count) : `${count} results found`;
                }
                this.searchResultsA11yText.textContent = searchText;
            }
            // highlight the next/prev item in the list (and ensure it is visible)
            _handleUpDownKey(key) {
                let next = key === "ArrowUp" ? this.highlightedItem.previousElementSibling : this.highlightedItem.nextElementSibling;
                if (next) {
                    // skip the divider
                    if (next.classList.contains("iti__divider")) {
                        next = key === "ArrowUp" ? next.previousElementSibling : next.nextElementSibling;
                    }
                } else if (this.countryList.childElementCount > 1) {
                    // otherwise, we must be at the end, so loop round again
                    next = key === "ArrowUp" ? this.countryList.lastElementChild : this.countryList.firstElementChild;
                }
                if (next) {
                    // make sure the next item is visible
                    // (before calling focus(), which can cause the next item to scroll to the middle of the dropdown, which is jarring)
                    this._scrollTo(next, false);
                    // if country search enabled, dont lose focus from the search input on up/down
                    const doFocus = !this.options.countrySearch;
                    this._highlightListItem(next, doFocus);
                }
            }
            // select the currently highlighted item
            _handleEnterKey() {
                if (this.highlightedItem) {
                    this._selectListItem(this.highlightedItem);
                }
            }
            // find the first list item whose name starts with the query string
            _searchForCountry(query) {
                for (let i = 0; i < this.countries.length; i++) {
                    if (this._startsWith(this.countries[i].name, query)) {
                        const listItem = this.countries[i].nodeById[this.id];
                        // update highlighting and scroll
                        this._highlightListItem(listItem, false);
                        this._scrollTo(listItem, true);
                        break;
                    }
                }
            }
            // check if string a starts with string b
            _startsWith(a, b) {
                return a.substr(0, b.length).toLowerCase() === b;
            }
            // update the input's value to the given val (format first if possible)
            // NOTE: this is called from _setInitialState, handleUtils and setNumber
            _updateValFromNumber(fullNumber) {
                let number = fullNumber;
                if (this.options.formatOnDisplay && window.intlTelInputUtils && this.selectedCountryData) {
                    const useNational = this.options.nationalMode || number.charAt(0) !== "+" && !this.options.showSelectedDialCode;
                    const {
                        NATIONAL,
                        INTERNATIONAL
                    } = intlTelInputUtils.numberFormat;
                    const format = useNational ? NATIONAL : INTERNATIONAL;
                    number = intlTelInputUtils.formatNumber(number, this.selectedCountryData.iso2, format);
                }
                number = this._beforeSetNumber(number);
                this.telInput.value = number;
            }
            // check if need to select a new flag based on the given number
            // Note: called from _setInitialState, keyup handler, setNumber
            _updateFlagFromNumber(fullNumber) {
                const plusIndex = fullNumber.indexOf("+");
                // if it contains a plus, discard any chars before it e.g. accidental space char.
                // this keeps the selected country auto-updating correctly, which we want as
                // libphonenumber's validation/getNumber methods will ignore these chars anyway
                let number = plusIndex ? fullNumber.substring(plusIndex) : fullNumber;
                // if we already have US/Canada selected, make sure the number starts
                // with a +1 so _getDialCode will be able to extract the area code
                // update: if we dont yet have selectedCountryData, but we're here (trying to update the flag
                // from the number), that means we're initialising the plugin with a number that already has a
                // dial code, so fine to ignore this bit
                const selectedDialCode = this.selectedCountryData.dialCode;
                const isNanp = selectedDialCode === "1";
                if (number && isNanp && number.charAt(0) !== "+") {
                    if (number.charAt(0) !== "1") {
                        number = `1${number}`;
                    }
                    number = `+${number}`;
                }
                // if showSelectedDialCode enabled, then consider the selected dial code to be part of the number
                if (this.options.showSelectedDialCode && selectedDialCode && number.charAt(0) !== "+") {
                    number = `+${selectedDialCode}${number}`;
                }
                // try and extract valid dial code from input
                const dialCode = this._getDialCode(number, true);
                const numeric = this._getNumeric(number);
                let iso2 = null;
                if (dialCode) {
                    const iso2Codes = this.dialCodeToIso2Map[this._getNumeric(dialCode)];
                    // check if the right country is already selected. this should be false if the number is
                    // longer than the matched dial code because in this case we need to make sure that if
                    // there are multiple country matches, that the first one is selected (note: we could
                    // just check that here, but it requires the same loop that we already have later)
                    const alreadySelected = iso2Codes.indexOf(this.selectedCountryData.iso2) !== -1 && numeric.length <= dialCode.length - 1;
                    const isRegionlessNanpNumber = selectedDialCode === "1" && this._isRegionlessNanp(numeric);
                    // only update the flag if:
                    // A) NOT (we currently have a NANP flag selected, and the number is a regionlessNanp)
                    // AND
                    // B) the right country is not already selected
                    if (!isRegionlessNanpNumber && !alreadySelected) {
                        // if using onlyCountries option, iso2Codes[0] may be empty, so we must find the first
                        // non-empty index
                        for (let j = 0; j < iso2Codes.length; j++) {
                            if (iso2Codes[j]) {
                                iso2 = iso2Codes[j];
                                break;
                            }
                        }
                    }
                } else if (number.charAt(0) === "+" && numeric.length) {
                    // invalid dial code, so empty
                    // Note: use getNumeric here because the number has not been formatted yet, so could contain
                    // bad chars
                    iso2 = "";
                } else if ((!number || number === "+") && !this.selectedCountryData.iso2) {
                    // if no selected flag, and user either clears the input, or just types a plus, then show default
                    iso2 = this.defaultCountry;
                }
                if (iso2 !== null) {
                    return this._setCountry(iso2);
                }
                return false;
            }
            // check if the given number is a regionless NANP number (expects the number to contain an
            // international dial code)
            _isRegionlessNanp(number) {
                const numeric = this._getNumeric(number);
                if (numeric.charAt(0) === "1") {
                    const areaCode = numeric.substr(1, 3);
                    return regionlessNanpNumbers.indexOf(areaCode) !== -1;
                }
                return false;
            }
            // remove highlighting from other list items and highlight the given item
            _highlightListItem(listItem, shouldFocus) {
                const prevItem = this.highlightedItem;
                if (prevItem) {
                    prevItem.classList.remove("iti__highlight");
                    prevItem.setAttribute("aria-selected", "false");
                }
                this.highlightedItem = listItem;
                this.highlightedItem.classList.add("iti__highlight");
                this.highlightedItem.setAttribute("aria-selected", "true");
                this.selectedFlag.setAttribute("aria-activedescendant", listItem.getAttribute("id"));
                if (this.options.countrySearch) {
                    this.searchInput.setAttribute("aria-activedescendant", listItem.getAttribute("id"));
                }
                if (shouldFocus) {
                    this.highlightedItem.focus();
                }
            }
            // find the country data for the given iso2 code
            // the ignoreOnlyCountriesOption is only used during init() while parsing the onlyCountries array
            _getCountryData(iso2, allowFail) {
                for (let i = 0; i < this.countries.length; i++) {
                    if (this.countries[i].iso2 === iso2) {
                        return this.countries[i];
                    }
                }
                if (allowFail) {
                    return null;
                }
                throw new Error(`No country data for '${iso2}'`);
            }
            // update the selected flag, dial code (if showSelectedDialCode), placeholder, title, and active list item
            // Note: called from _setInitialState, _updateFlagFromNumber, _selectListItem, setCountry
            _setCountry(iso2) {
                const {
                    allowDropdown,
                    showSelectedDialCode,
                    showFlags,
                    countrySearch,
                    i18n
                } = this.options;
                const prevCountry = this.selectedCountryData.iso2 ? this.selectedCountryData : {};
                // do this first as it will throw an error and stop if iso2 is invalid
                this.selectedCountryData = iso2 ? this._getCountryData(iso2, false) : {};
                // update the defaultCountry - we only need the iso2 from now on, so just store that
                if (this.selectedCountryData.iso2) {
                    this.defaultCountry = this.selectedCountryData.iso2;
                }
                // update the flag class and the a11y text
                if (this.selectedFlagInner) {
                    let flagClass = "";
                    let a11yText = "";
                    if (iso2) {
                        if (showFlags) {
                            flagClass = `iti__flag iti__${iso2}`;
                            a11yText = `${this.selectedCountryData.name} +${this.selectedCountryData.dialCode}`;
                        }
                        // if showFlags disabled and showSelectedDialCode is enabled, we dont show a flag or have any a11y text, as the displayed dial code is enough
                    } else {
                        flagClass = "iti__flag iti__globe";
                        a11yText = i18n.noCountrySelected || "No country selected";
                    }
                    this.selectedFlagInner.className = flagClass;
                    this.selectedFlagA11yText.textContent = a11yText;
                }
                this._setSelectedCountryFlagTitleAttribute(iso2, showSelectedDialCode);
                // update the selected dial code
                if (showSelectedDialCode) {
                    const dialCode = this.selectedCountryData.dialCode ? `+${this.selectedCountryData.dialCode}` : "";
                    this.selectedDialCode.innerHTML = dialCode;
                    // offsetWidth is zero if input is in a hidden container during initialisation
                    const selectedFlagWidth = this.selectedFlag.offsetWidth || this._getHiddenSelectedFlagWidth();
                    // add 6px of padding after the grey selected-dial-code box, as this is what we use in the css
                    if (this.isRTL) {
                        this.telInput.style.paddingRight = `${selectedFlagWidth + 6}px`;
                    } else {
                        this.telInput.style.paddingLeft = `${selectedFlagWidth + 6}px`;
                    }
                }
                // and the input's placeholder
                this._updatePlaceholder();
                // update the maximum valid number length
                this._updateMaxLength();
                // update the active list item (only if country search disabled, as country search doesn't store the active item)
                if (allowDropdown && !countrySearch) {
                    const prevItem = this.activeItem;
                    if (prevItem) {
                        prevItem.classList.remove("iti__active");
                        prevItem.setAttribute("aria-selected", "false");
                    }
                    if (iso2) {
                        // check if there is a preferred item first, else fall back to standard
                        const nextItem = this.countryList.querySelector(`#iti-${this.id}__item-${iso2}-preferred`) || this.countryList.querySelector(`#iti-${this.id}__item-${iso2}`);
                        nextItem.setAttribute("aria-selected", "true");
                        nextItem.classList.add("iti__active");
                        this.activeItem = nextItem;
                    }
                }
                // return if the flag has changed or not
                return prevCountry.iso2 !== iso2;
            }
            // update the maximum valid number length for the currently selected country
            _updateMaxLength() {
                if (this.options.strictMode && window.intlTelInputUtils) {
                    if (this.selectedCountryData.iso2) {
                        const numberType = intlTelInputUtils.numberType[this.options.placeholderNumberType];
                        let exampleNumber = intlTelInputUtils.getExampleNumber(this.selectedCountryData.iso2, null, numberType, true);
                        // see if adding more digits is still valid to get the true maximum valid length
                        let validNumber = exampleNumber;
                        while (intlTelInputUtils.isPossibleNumber(exampleNumber, this.selectedCountryData.iso2)) {
                            validNumber = exampleNumber;
                            exampleNumber += "0";
                        }
                        const coreNumber = intlTelInputUtils.getCoreNumber(validNumber, this.selectedCountryData.iso2);
                        this.maxCoreNumberLength = coreNumber.length;
                    } else {
                        this.maxCoreNumberLength = null;
                    }
                }
            }
            _setSelectedCountryFlagTitleAttribute(iso2, showSelectedDialCode) {
                if (!this.selectedFlag) {
                    return;
                }
                let title;
                if (iso2 && !showSelectedDialCode) {
                    title = `${this.selectedCountryData.name}: +${this.selectedCountryData.dialCode}`;
                } else if (iso2) {
                    // For screen reader output, we don't want to include the dial code in the reader output twice
                    // so just use the selected country name here:
                    title = this.selectedCountryData.name;
                } else {
                    title = "Unknown";
                }
                this.selectedFlag.setAttribute("title", title);
            }
            // when the input is in a hidden container during initialisation, we must inject some markup
            // into the end of the DOM to calculate the correct offsetWidth
            // NOTE: this is only used when showSelectedDialCode is enabled, so flagsContainer and selectedFlag
            // will definitely exist
            _getHiddenSelectedFlagWidth() {
                // to get the right styling to apply, all we need is a shallow clone of the container,
                // and then to inject a deep clone of the selectedFlag element
                const containerClone = this.telInput.parentNode.cloneNode();
                containerClone.style.visibility = "hidden";
                document.body.appendChild(containerClone);
                const flagsContainerClone = this.flagsContainer.cloneNode();
                containerClone.appendChild(flagsContainerClone);
                const selectedFlagClone = this.selectedFlag.cloneNode(true);
                flagsContainerClone.appendChild(selectedFlagClone);
                const width = selectedFlagClone.offsetWidth;
                containerClone.parentNode.removeChild(containerClone);
                return width;
            }
            // update the input placeholder to an example number from the currently selected country
            _updatePlaceholder() {
                const {
                    autoPlaceholder,
                    placeholderNumberType,
                    nationalMode,
                    customPlaceholder
                } = this.options;
                const shouldSetPlaceholder = autoPlaceholder === "aggressive" || !this.hadInitialPlaceholder && autoPlaceholder === "polite";
                if (window.intlTelInputUtils && shouldSetPlaceholder) {
                    const numberType = intlTelInputUtils.numberType[placeholderNumberType];
                    // note: must set placeholder to empty string if no country selected (globe icon showing)
                    let placeholder = this.selectedCountryData.iso2 ? intlTelInputUtils.getExampleNumber(this.selectedCountryData.iso2, nationalMode, numberType) : "";
                    placeholder = this._beforeSetNumber(placeholder);
                    if (typeof customPlaceholder === "function") {
                        placeholder = customPlaceholder(placeholder, this.selectedCountryData);
                    }
                    this.telInput.setAttribute("placeholder", placeholder);
                }
            }
            // called when the user selects a list item from the dropdown
            _selectListItem(listItem) {
                // update selected flag and active list item
                const flagChanged = this._setCountry(listItem.getAttribute("data-country-code"));
                this._closeDropdown();
                this._updateDialCode(listItem.getAttribute("data-dial-code"));
                // focus the input
                this.telInput.focus();
                if (flagChanged) {
                    this._triggerCountryChange();
                }
            }
            // close the dropdown and unbind any listeners
            _closeDropdown() {
                this.dropdownContent.classList.add("iti__hide");
                this.selectedFlag.setAttribute("aria-expanded", "false");
                this.selectedFlag.removeAttribute("aria-activedescendant");
                if (this.highlightedItem) {
                    this.highlightedItem.setAttribute("aria-selected", "false");
                }
                if (this.options.countrySearch) {
                    this.searchInput.removeAttribute("aria-activedescendant");
                }
                // update the arrow
                this.dropdownArrow.classList.remove("iti__arrow--up");
                // unbind key events
                document.removeEventListener("keydown", this._handleKeydownOnDropdown);
                if (this.options.countrySearch) {
                    this.searchInput.removeEventListener("input", this._handleSearchChange);
                }
                document.documentElement.removeEventListener("click", this._handleClickOffToClose);
                this.countryList.removeEventListener("mouseover", this._handleMouseoverCountryList);
                this.countryList.removeEventListener("click", this._handleClickCountryList);
                // remove menu from container
                if (this.options.dropdownContainer) {
                    if (!this.options.useFullscreenPopup) {
                        window.removeEventListener("scroll", this._handleWindowScroll);
                    }
                    if (this.dropdown.parentNode) {
                        this.dropdown.parentNode.removeChild(this.dropdown);
                    }
                }
                this._trigger("close:countrydropdown");
            }
            // check if an element is visible within it's container, else scroll until it is
            _scrollTo(element, middle) {
                const container = this.countryList;
                // windowTop from https://stackoverflow.com/a/14384091/217866
                const windowTop = document.documentElement.scrollTop;
                const containerHeight = container.offsetHeight;
                const containerTop = container.getBoundingClientRect().top + windowTop;
                const containerBottom = containerTop + containerHeight;
                const elementHeight = element.offsetHeight;
                const elementTop = element.getBoundingClientRect().top + windowTop;
                const elementBottom = elementTop + elementHeight;
                let newScrollTop = elementTop - containerTop + container.scrollTop;
                const middleOffset = containerHeight / 2 - elementHeight / 2;
                if (elementTop < containerTop) {
                    // scroll up
                    if (middle) {
                        newScrollTop -= middleOffset;
                    }
                    container.scrollTop = newScrollTop;
                } else if (elementBottom > containerBottom) {
                    // scroll down
                    if (middle) {
                        newScrollTop += middleOffset;
                    }
                    const heightDifference = containerHeight - elementHeight;
                    container.scrollTop = newScrollTop - heightDifference;
                }
            }
            // replace any existing dial code with the new one
            // Note: called from _selectListItem and setCountry
            _updateDialCode(newDialCodeBare) {
                const inputVal = this.telInput.value;
                // save having to pass this every time
                const newDialCode = `+${newDialCodeBare}`;
                let newNumber;
                if (inputVal.charAt(0) === "+") {
                    // there's a plus so we're dealing with a replacement
                    const prevDialCode = this._getDialCode(inputVal);
                    if (prevDialCode) {
                        // current number contains a valid dial code, so replace it
                        newNumber = inputVal.replace(prevDialCode, newDialCode);
                    } else {
                        // current number contains an invalid dial code, so ditch it
                        // (no way to determine where the invalid dial code ends and the rest of the number begins)
                        newNumber = newDialCode;
                    }
                    this.telInput.value = newNumber;
                }
            }
            // try and extract a valid international dial code from a full telephone number
            // Note: returns the raw string inc plus character and any whitespace/dots etc
            _getDialCode(number, includeAreaCode) {
                let dialCode = "";
                // only interested in international numbers (starting with a plus)
                if (number.charAt(0) === "+") {
                    let numericChars = "";
                    // iterate over chars
                    for (let i = 0; i < number.length; i++) {
                        const c = number.charAt(i);
                        // if char is number (https://stackoverflow.com/a/8935649/217866)
                        if (!isNaN(parseInt(c, 10))) {
                            numericChars += c;
                            // if current numericChars make a valid dial code
                            if (includeAreaCode) {
                                if (this.dialCodeToIso2Map[numericChars]) {
                                    // store the actual raw string (useful for matching later)
                                    dialCode = number.substr(0, i + 1);
                                }
                            } else {
                                if (this.dialCodes[numericChars]) {
                                    dialCode = number.substr(0, i + 1);
                                    // if we're just looking for a dial code, we can break as soon as we find one
                                    break;
                                }
                            }
                            // stop searching as soon as we can - in this case when we hit max len
                            if (numericChars.length === this.dialCodeMaxLen) {
                                break;
                            }
                        }
                    }
                }
                return dialCode;
            }
            // get the input val, adding the dial code if showSelectedDialCode is enabled
            _getFullNumber() {
                const val = this.telInput.value.trim();
                const {
                    dialCode
                } = this.selectedCountryData;
                let prefix;
                const numericVal = this._getNumeric(val);
                if (this.options.showSelectedDialCode && !this.options.nationalMode && val.charAt(0) !== "+" && dialCode && numericVal) {
                    // when using showSelectedDialCode, it is visible so is effectively part of the typed number
                    prefix = `+${dialCode}`;
                } else {
                    prefix = "";
                }
                return prefix + val;
            }
            // remove the dial code if showSelectedDialCode is enabled
            // also cap the length if the input has a maxlength attribute
            _beforeSetNumber(fullNumber) {
                let number = fullNumber;
                if (this.options.showSelectedDialCode) {
                    let dialCode = this._getDialCode(number);
                    // if there is a valid dial code
                    if (dialCode) {
                        // in case _getDialCode returned an area code as well
                        dialCode = `+${this.selectedCountryData.dialCode}`;
                        // a lot of numbers will have a space separating the dial code and the main number, and
                        // some NANP numbers will have a hyphen e.g. +1 684-733-1234 - in both cases we want to get
                        // rid of it
                        // NOTE: don't just trim all non-numerics as may want to preserve an open parenthesis etc
                        const start = number[dialCode.length] === " " || number[dialCode.length] === "-" ? dialCode.length + 1 : dialCode.length;
                        number = number.substr(start);
                    }
                }
                return this._cap(number);
            }
            // trigger the 'countrychange' event
            _triggerCountryChange() {
                this._trigger("countrychange");
            }
            // format the number as the user types
            _formatNumberAsYouType() {
                const val = this._getFullNumber();
                const result = window.intlTelInputUtils ? intlTelInputUtils.formatNumberAsYouType(val, this.selectedCountryData.iso2) : val;
                // if showSelectedDialCode and they haven't (re)typed the dial code in the input as well, then remove the dial code
                const {
                    dialCode
                } = this.selectedCountryData;
                if (this.options.showSelectedDialCode && !this.options.nationalMode && this.telInput.value.charAt(0) !== "+" && result.includes(`+${dialCode}`)) {
                    const afterDialCode = result.split(`+${dialCode}`)[1] || "";
                    return afterDialCode.trim();
                }
                return result;
            }
            /**************************
   *  SECRET PUBLIC METHODS
   **************************/
            // this is called when the geoip call returns
            handleAutoCountry() {
                if (this.options.initialCountry === "auto") {
                    // we must set this even if there is an initial val in the input: in case the initial val is
                    // invalid and they delete it - they should see their auto country
                    this.defaultCountry = window.intlTelInputGlobals.autoCountry;
                    // if there's no initial value in the input, then update the flag
                    if (!this.telInput.value) {
                        this.setCountry(this.defaultCountry);
                    }
                    this.resolveAutoCountryPromise();
                }
            }
            // this is called when the utils request completes
            handleUtils() {
                // if the request was successful
                if (window.intlTelInputUtils) {
                    // if there's an initial value in the input, then format it
                    if (this.telInput.value) {
                        this._updateValFromNumber(this.telInput.value);
                    }
                    if (this.selectedCountryData.iso2) {
                        this._updatePlaceholder();
                        this._updateMaxLength();
                    }
                }
                this.resolveUtilsScriptPromise();
            }
            /********************
   *  PUBLIC METHODS
   ********************/
            // remove plugin
            destroy() {
                if (this.options.allowDropdown) {
                    // make sure the dropdown is closed (and unbind listeners)
                    this._closeDropdown();
                    this.selectedFlag.removeEventListener("click", this._handleClickSelectedFlag);
                    this.flagsContainer.removeEventListener("keydown", this._handleFlagsContainerKeydown);
                    // label click hack
                    const label = this.telInput.closest("label");
                    if (label) {
                        label.removeEventListener("click", this._handleLabelClick);
                    }
                }
                // unbind hiddenInput listeners
                const {
                    form
                } = this.telInput;
                if (this._handleHiddenInputSubmit && form) {
                    form.removeEventListener("submit", this._handleHiddenInputSubmit);
                }
                // unbind key events, and cut/paste events
                this.telInput.removeEventListener("input", this._handleInputEvent);
                if (this._handleKeydownEvent) {
                    this.telInput.removeEventListener("keydown", this._handleKeydownEvent);
                }
                // remove attribute of id instance: data-intl-tel-input-id
                this.telInput.removeAttribute("data-intl-tel-input-id");
                // remove markup (but leave the original input)
                const wrapper = this.telInput.parentNode;
                wrapper.parentNode.insertBefore(this.telInput, wrapper);
                wrapper.parentNode.removeChild(wrapper);
                delete window.intlTelInputGlobals.instances[this.id];
            }
            // get the extension from the current number
            getExtension() {
                if (window.intlTelInputUtils) {
                    return intlTelInputUtils.getExtension(this._getFullNumber(), this.selectedCountryData.iso2);
                }
                return "";
            }
            // format the number to the given format
            getNumber(format) {
                if (window.intlTelInputUtils) {
                    const {
                        iso2
                    } = this.selectedCountryData;
                    return intlTelInputUtils.formatNumber(this._getFullNumber(), iso2, format);
                }
                return "";
            }
            // get the type of the entered number e.g. landline/mobile
            getNumberType() {
                if (window.intlTelInputUtils) {
                    return intlTelInputUtils.getNumberType(this._getFullNumber(), this.selectedCountryData.iso2);
                }
                return -99;
            }
            // get the country data for the currently selected flag
            getSelectedCountryData() {
                return this.selectedCountryData;
            }
            // get the validation error
            getValidationError() {
                if (window.intlTelInputUtils) {
                    const {
                        iso2
                    } = this.selectedCountryData;
                    return intlTelInputUtils.getValidationError(this._getFullNumber(), iso2);
                }
                return -99;
            }
            // validate the input val - assumes the global function isPossibleNumber (from utilsScript)
            isValidNumber(mobileOnly = true) {
                const val = this._getFullNumber();
                // return false for any alpha chars
                if (/\p{L}/u.test(val)) {
                    return false;
                }
                return window.intlTelInputUtils ? intlTelInputUtils.isPossibleNumber(val, this.selectedCountryData.iso2, mobileOnly) : null;
            }
            // validate the input val (precise) - assumes the global function isValidNumber (from utilsScript)
            isValidNumberPrecise() {
                const val = this._getFullNumber();
                // return false for any alpha chars
                if (/\p{L}/u.test(val)) {
                    return false;
                }
                return window.intlTelInputUtils ? intlTelInputUtils.isValidNumber(val, this.selectedCountryData.iso2) : null;
            }
            // update the selected flag, and update the input val accordingly
            setCountry(iso2) {
                const iso2Lower = iso2.toLowerCase();
                // check if already selected
                if (this.selectedCountryData.iso2 !== iso2Lower) {
                    this._setCountry(iso2Lower);
                    this._updateDialCode(this.selectedCountryData.dialCode);
                    this._triggerCountryChange();
                }
            }
            // set the input value and update the flag
            setNumber(number) {
                // we must update the flag first, which updates this.selectedCountryData, which is used for
                // formatting the number before displaying it
                const flagChanged = this._updateFlagFromNumber(number);
                this._updateValFromNumber(number);
                if (flagChanged) {
                    this._triggerCountryChange();
                }
            }
            // set the placeholder number typ
            setPlaceholderNumberType(type) {
                this.options.placeholderNumberType = type;
                this._updatePlaceholder();
            }
        }
        /********************
 *  STATIC METHODS
 ********************/
        // get the country data object
        intlTelInputGlobals.getCountryData = () => allCountries;
        // inject a <script> element to load utils.js
        const injectScript = (path, handleSuccess, handleFailure) => {
            // inject a new script element into the page
            const script = document.createElement("script");
            script.onload = () => {
                forEachInstance("handleUtils");
                if (handleSuccess) {
                    handleSuccess();
                }
            };
            script.onerror = () => {
                forEachInstance("rejectUtilsScriptPromise");
                if (handleFailure) {
                    handleFailure();
                }
            };
            script.className = "iti-load-utils";
            script.async = true;
            script.src = path;
            document.body.appendChild(script);
        };
        // load the utils script
        intlTelInputGlobals.loadUtils = path => {
            // 2 options:
            // 1) not already started loading (start)
            // 2) already started loading (do nothing - just wait for the onload callback to fire, which will
            // trigger handleUtils on all instances, invoking their resolveUtilsScriptPromise functions)
            if (!window.intlTelInputUtils && !window.intlTelInputGlobals.startedLoadingUtilsScript) {
                // only do this once
                window.intlTelInputGlobals.startedLoadingUtilsScript = true;
                return new Promise((resolve, reject) => injectScript(path, resolve, reject));
            }
            return null;
        };
        // default options
        intlTelInputGlobals.defaults = defaults;
        // version
        intlTelInputGlobals.version = "20.3.0";
        // convenience wrapper
        return function(input, options) {
            var iti = new Iti(input, options);
            iti._init();
            input.setAttribute("data-intl-tel-input-id", iti.id);
            window.intlTelInputGlobals.instances[iti.id] = iti;
            return iti;
        };
    }();
});