JS Not working

Hi,

I’m using the below code to get a specfic output where it autofills the input fields “text-3” and “currency-1” according to the valuues of the input “date-1” “date-2” and “radio-1”, but the code doesn’t seem to working, please do resolve me the issue ASAP…

window.addEventListener("DOMContentLoaded", (e) => {
    const t = document.querySelector("#forminator-field-currency-1"),
        a = document.querySelector('input[name="date-1"]'),
        n = document.querySelector('input[name="date-2"]'),
        r = document.querySelectorAll('input[name="radio-1"]'),
        o = document.querySelector("#forminator-field-text-3"),
        u = document.querySelector('input[name="name-1"]'),
        d = document.querySelector('input[name="name-2"]'),
        c = document.querySelector("#forminator-field-email-1"),
        l = document.querySelector("#forminator-field-text-1"),
        m = document.querySelector("#forminator-field-textarea-1"),
        s = document.querySelector("#forminator-field-phone-1"),
        v = document.querySelector("#forminator-field-number-1"),
        y = document.querySelector("#forminator-field-number-2"),
        f = document.querySelector("#payhere-payment");
    var h;
    const p = () => {
        let e = "Car",
            m = "0.00";
        if ("" != a.value && "" != n.value) {
            for (i = 0; i < r.length; i++) r[i].checked && (e = r[i].value);
            const t = new Date(a.value),
                u = new Date(n.value);
            u.setDate(u.getDate());
            const d = u.getTime() - t.getTime(),
                c = d / 864e5 > 0 ? d / 864e5 : 1;
            (o.value = 0 == c ? 1 : c), "Car" == e ? (m = 45 * c) : "Van" == e ? (m = 55 * c) : "Bus" == e ? (m = 70 * c);
        }
        t.value = m;
        var p = { start_date: a.value, end_date: n.value, days_diff: o.value },
            g = { name: u.value + " " + d.value, adult: v.value, child: y.value, phone: s.value, vehicle: e };
        (h = {
            sandbox: !1,
            merchant_id: "217544",
            return_url: void 0,
            cancel_url: void 0,
            notify_url: "https://payment.srilankatoursandcars.com/api.php",
            order_id: "01",
            items: "Customize Multi Tour",
            amount: m,
            currency: "USD",
            first_name: u.value,
            last_name: d.value,
            email: c.value,
            phone: s.value,
            address: void 0,
            city: l.value,
            country: l.value,
            custom_1: JSON.stringify(p),
            custom_2: JSON.stringify(g),
        }),
            "" != u.value && "" != d.value && "" != c.value && "" != l.value && "" != s.value && "" != v.value && "" != y.value && "" != a.value && "" != n.value ? (f.disabled = !1) : (f.disabled = !0);
    };
    t && (t.readOnly = !0),
        o && (o.readOnly = !0),
        f && (f.disabled = !0),
        a &&
            a.addEventListener("change", (e) => {
                p();
            }),
        n &&
            a.addEventListener("change", (e) => {
                p();
            }),
        m &&
            m.addEventListener("change", (e) => {
                p();
            }),
        u &&
            u.addEventListener("change", (e) => {
                p();
            }),
        d &&
            d.addEventListener("change", (e) => {
                p();
            }),
        c &&
            c.addEventListener("change", (e) => {
                p();
            }),
        l &&
            l.addEventListener("change", (e) => {
                p();
            }),
        s &&
            s.addEventListener("change", (e) => {
                p();
            }),
        v &&
            v.addEventListener("change", (e) => {
                p();
            }),
        y &&
            y.addEventListener("change", (e) => {
                p();
            }),
        r &&
            r.forEach((e) => {
                e.addEventListener("change", (e) => {
                    p();
                });
            }),
        (payhere.onCompleted = function (e) {
            document.querySelector(".forminator-button-submit").click(), alert("Payment completed");
        }),
        (payhere.onDismissed = function () {
            alert("Payment dismissed");
        }),
        (payhere.onError = function (e) {
            alert("Error:" + e);
        }),
        (document.getElementById("payhere-payment").onclick = function (e) {
            payhere.startPayment(h);
        }),
        (contactpayment = {
            sandbox: !1,
            merchant_id: "217544",
            return_url: void 0,
            cancel_url: void 0,
            notify_url: "https://payment.srilankatoursandcars.com/api.php",
            order_id: "01",
            items: "Customize Multi Tour",
            amount: 10,
            currency: "USD",
            first_name: "Website",
            last_name: "contact",
            email: "info@akasa.lk",
            phone: "0778786733",
            address: void 0,
            city: "srilanka",
            country: "srilanka",
        }),
        (document.getElementById("concheckout").onclick = function (e) {
            payhere.startPayment(contactpayment);
????????});
});

Thank you,
Regards,
Ssd Server 9

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