Id(`text-${demo_name}`);
            const on_update = () => {
                if (demo_name == "link") {
                    area.value = input.value;
                } else if (demo_name == "wlan") {
                    const wlan_ssid = document.getElementById("wlan-ssid").value;
                    const wlan_password = document.getElementById("wlan-password").value;
                    area.value = `WIFI:T:WPA;S:${wlan_ssid};P:${wlan_password};;`;
                }
                // @TODO: add all typ