web-design-itv/async3.html at master · mavrick08/web-design-itv · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Example 3</title>
</head>
<body>
    <p id="demo">Hello</p>

    <script>
        async function getWebFile(){
            let myPromise = new Promise(function(resolve){
                let request = new XMLHttpRequest();
                request.open('GET','boot_table.html');
                request.onload = function(){
                    if(request.status == 200)
                    {
                        resolve(request.response);
                    }
                    else{
                        resolve("File is not available");
                    }
                };
                request.send();
            });
            document.getElementById("demo").innerHTML = await myPromise;
        }
        getWebFile();
    </script>
</body>
</html>