new XMLHttpRequest() errors

Unity Engine
1

In the lates version of Unity 3, when I include this line in my code I am receiving an error:

BCE0005: Unknown identifier: ‘XMLHttpRequest’.

Any ideas why?

Full method:

function getApi(uri:String){
	var xmlHttpRequest= new XMLHttpRequest();
	xmlHttpRequest.open("GET",uri, true);

	xmlHttpRequest.send(null);

	xmlHttpRequest.onreadystatechange = function(){
		if(xmlHttpRequest.readyState == 4  xmlHttpRequest.status == 200)
		{
			Debug.Log(xmlHttpRequest.responseText);
		}

	};
}
2

Because it doesn’t exist. Unity doesn’t use ECMAScript (web JavaScript)

3

Ah. The docs should probably reflect that a bit more clearly and the file extension should probably be something other than js. And JS is an implementation of the ECMA Script standard, fwiw.

Thanks.

4

I agree - the name is crap. A quick search of this forum and Google shows the amount of confusion it causes. If you go the JS route, think of it more as ActionScript 3 in terms of syntax and semantics (not exact but closer).

5

XMLHttpRequest is not guaranteed to work across platforms. You should use the WWW class instead.

6

It’s guaranteed to NOT work on ANY platform because it doesn’t exist in the .NET/Mono runtime. :slight_smile:

Agreed - this is the way to go.