phoneInput.custom.js

if ($("input#mobileNumber").length) {

    var input = document.querySelector("input#mobileNumber");

    window.intlTelInput(input, {
        //initialCountry: "br",
        autoPlaceHolder: "agressive",
        utilsScript: "/vendors/js/tel-input/js/utils.js",
        initialCountry: "auto",
        preferredCountries: ["br", "pt", "us"],
        geoIpLookup: function (callback) {
            $.get('https://ipinfo.io', function () {
            }, "jsonp").always(function (resp) {
                var countryCode = (resp && resp.country) ? resp.country : "BR";
                callback(countryCode);
            });
        },
        customPlaceholder: function (selectedCountryPlaceholder, selectedCountryData) {
            input.addEventListener("focus", function (event) {
                var im = new Inputmask(selectedCountryPlaceholder.replace(new RegExp("[0-9]", "g"), "9"));
                im.mask(event.target);
            });

            input.addEventListener("mouseover", function (event) {
                input.setAttribute('placeholder', selectedCountryPlaceholder)
            });

            input.addEventListener("mouseout", function (event) {
                event.target.setAttribute('placeholder', "Telefone Celular")
            });

            return "Telefone Celular";
        }
    });
} else if ($("input#numberPhone").length) {

    var input = document.querySelector("input#numberPhone");

    window.intlTelInput(input, {
        //initialCountry: "br",
        autoPlaceHolder: "agressive",
        utilsScript: "/vendors/js/tel-input/js/utils.js",
        initialCountry: "auto",
        preferredCountries: ["br", "pt", "us"],
        geoIpLookup: function (callback) {
            $.get('https://ipinfo.io', function () {
            }, "jsonp").always(function (resp) {
                var countryCode = (resp && resp.country) ? resp.country : "BR";
                callback(countryCode);
            });
        },
        customPlaceholder: function (selectedCountryPlaceholder, selectedCountryData) {
            input.addEventListener("focus", function (event) {
                var im = new Inputmask(selectedCountryPlaceholder.replace(new RegExp("[0-9]", "g"), "9"));
                im.mask(event.target);
            });

            input.addEventListener("mouseover", function (event) {
                input.setAttribute('placeholder', selectedCountryPlaceholder)
            });

            input.addEventListener("mouseout", function (event) {
                event.target.setAttribute('placeholder', "Telefone Celular")
            });

            return "Telefone Celular";
        }
    });
}