How to throw error from asynchronous reporter?

Jonathan50

I have an asynchronous reporter that uses AJAX calls. If I have this code:

ext.exampleFunction = function(callback) {
	var xmlHttp = new XMLHttpRequest();
	xmlHttp.open("GET", "http://example.com/", true);
	xmlHttp.onreadystatechange = function() {
		if(xmlHttp.readyState == 4) {
			if(xmlHttp.status == 200) {
				callback(xmlHttp.responseText);
			} else {
				//I want to throw an error here!
			}
		}
	};
}

If you don't know what I mean, try running this block:

((0) / (0))

Since the operation is impossible, the block has a red outline to show there is an error. I want my block to be able to this.
I don't know if it is currently possible, since it is not in the official documentation here.
Something like:

callback(error);

Jonathan50

I tried ‘callback(0 / 0)’ and got NaN (not a number). I tried ‘throw “Could not connect!”’ but it does nothing and just goes forever since there is no callback (although it does log the uncaught error to the console). I tried ‘callback(throw “Could not connect!”)’ without expecting it to work and parsing the javascript failed.

Jonathan50

For now I'm just using ‘callback()’ or ‘callback(null)’ and they both just return null but if there is any way I would like to know.

Jonathan50

Bump

djdolphin

I don't think there's any better way than what you're doing.

Jonathan50

djdolphin wrote:
I don't think there's any better way than what you're doing.

Ok… Thanks!
Maybe ST could add that in the future?

Jonathan50

What happened? Spam?

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