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<html><body><h2>JavaScript Callbacks</h2><p id="demo"></p><script>function myDisplayer(some) { document.getElementById("demo").innerHTML = some;}function getFile(myCallback) { let req = new XMLHttpRequest(); req.onload = function() { if (req.status == 200) { myCallback(this.responseText); } else { myCallback("Error: " + req.status); } } req.open('GET.html', "mycar.html"); req.send();}getFile(myDisplayer); </script></body><!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_callback7 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:06:54 GMT --></html>