white for file loaded
async function getFile() { let myPromise = new Promise(function(resolve) { let req = new XMLHttpRequest(); req.open('GET', "mycar.html"); req.onload = function() { if (req.status == 200) { resolve(req.response); } else { resolve("File not Found"); } }; req.send(); }); document.getElementById("demo").innerHTML = await myPromise; } getFile();