<html><body><h2>JavaScript async / await</h2><p id="demo"></p><script>async function getFile() { let myPromise = new Promise(function(myResolve, myReject) { let req = new XMLHttpRequest(); req.open('GET', "/demo/js/mycar.html"); req.onload = function() { if (req.status == 200) { myResolve(req.response); } else { myResolve("File not Found"); } }; req.send(); }); document.getElementById("demo").innerHTML = await myPromise;}getFile();</script></body></html>