function handleClick(): void { console.log("Der Button wurde geklickt!"); alert("Hallo von TypeScript!"); fetch("/api/command", { method: "POST" }) .then(res => res.text()) .then(text => console.log("Server sagt:", text)); /*fetch("https://192-168-197-2.c-one-infra.de/api/command", { method: "POST" }) .then(res => res.text()) .then(text => console.log("Server sagt:", text)); */ } document.addEventListener("DOMContentLoaded", () => { const button = document.getElementById("myButton"); button?.addEventListener("click", handleClick); });