How to monitor script loading progress on AS3?

Question

Adobe Flash

Good day!
There is such a modest script (AS3):

Actually, I need to track the loading process of this script (0% loaded, 50%..) with trace output, for example. How to do it?

Answer 1

In general, it should be

var reqeust: URLRequest = new URLRequest("https://toster.ru/q/219928");
var loader: URLLoader = new URLLoader();
loader.addEventListener(ProgressEvent.PROGRESS, function(e: ProgressEvent): void {
    trace(e.bytesLoaded + "/" + e.bytesTotal);
});

loader.load(request);

But specifically for this page, as well as for your script, e.bytesTotal will be equal to 0, since the web server does not return the "Content-Length" header in the header and we do not know how much the size of the downloaded resource will be. If you try to upload, for example, a photo in the same way, then the size will be known in advance for it.