sitecore forms International Text Input

// sitecore forms
    var input = document.querySelector(".gm-phone-no-field");

    window.intlTelInput(input, {
        autoHideDialCode: false,
        autoPlaceholder: "off",
        dropdownContainer: document.body,
        formatOnDisplay: false,
        nationalMode: false,
        separateDialCode: true,
        utilsScript: "utils.js",
    });
    input.addEventListener("countrychange", function () {
        var inputVal = jQuery('.iti__selected-dial-code').text();
        console.log(inputVal);
        jQuery(".gm-phone-no-field").val(inputVal);

    });
    $('.gm-phone-no-field > li').click(function () {
        setTimeout(function () {
            var title = $('.selected-flag').attr('title');
            $("[data-type='hidden'] .input .form-control").val(title);
        });
    });