TikTok Pixel tag valid TypeScript / JavaScript

tiktok.ts

function tiktokTag() {
    try {
        window.TiktokAnalyticsObject = 'ttq';
        var ttq = window.ttq = window.ttq || [];
        ttq.methods = ["page", "track", "identify", "instances", "debug", "on", "off", "once", "ready", "alias", "group", "enableCookie", "disableCookie"];
        ttq.setAndDefer = function(t, e) {
            t[e] = function() {
                t.push([e].concat(Array.prototype.slice.call(arguments, 0)))
            }
        };
        for (var i = 0; i < ttq.methods.length; i++) { ttq.setAndDefer(ttq, ttq.methods[i]); }
        ttq.instance = function(t) {
            for (var e = ttq._i[t] || [], n = 0; n < ttq.methods.length; n++) { ttq.setAndDefer(e, ttq.methods[n]); }
            return e;
        }; 
        ttq.load = function(e, n) {
            var i = "https://analytics.tiktok.com/i18n/pixel/events.js";
            ttq._i = ttq._i || {}; ttq._i[e] = []; ttq._i[e]._u = i; ttq._t = ttq._t || {}; ttq._t[e] = +new Date; ttq._o = ttq._o || {}; ttq._o[e] = n || {};
            n = document.createElement("script");
            n.type = "text/javascript"; n.async = !0; n.src = i + "?sdkid=" + e + "&lib=ttq";
            e = document.getElementsByTagName("script")[0];
            e.parentNode.insertBefore(n, e)
        };
    
        ttq.load('ABC123_MY_ID_HERE');
        ttq.page();    
    } catch (e) {
        console.log(e);
    }
}