Try catch == ioError?

1

Hey guys,

I need to attempt to download a 1kb text file on startup to check if there is a connection. This is because of the environment.

I realised:

//...
testLoader.addEventListener(IOErrorEvent.IO_ERROR,someErrorHandler)

or:


try 
{
        //...
         testLoader.load(someURLRequest);
}
catch (e:Error)
{
          someErrorHandler();           
}

Can someone explain the difference between these? try or catch under a search shows nothing.

Cheers.