<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>Promises Start</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.4.0/rxjs.umd.min.js"></script>
</head>
<body>
<script>
async function f() {
let promise = new Promise((resolve, reject) => {
setTimeout(() => resolve("done!"), 10000)
});
console.log("Start")
let result = await promise; // wait until the promise resolves, can only be used in async (*)
alert(result); // "done!"
console.log("Done");
}
f();
</script>
</body>
</html>