As a C# developer I'm used to the following style of exception handling:

try

{

    throw SomeException(hahahaha!);

}

catch (Exception ex)

{

    Log(ex.ToString());

}



Output

------



SomeNamespace.SomeException: hahahaha!

    at ConsoleApplication1.Main() in ConsoleApplication1Program.cs:line 27

Its really simple, and yet tells me everything I need to know about what the exception was and where it was.

How do I achieve the equivalent thing in JavaScript where the exception object itself might just be a string. I really want to be able to know the exact line of code where the exception happened, however the following code doesn't log anything useful at all:

try

{

    var WshShell = new ActiveXObject(WScript.Shell);

    return WshShell.RegRead(HKEY_LOCAL_MACHINE\Some\Invalid\Location);

}

catch (ex)

{

    Log(Caught exception:  + ex);

}



Output

------



Caught exception: [object Error]

EDIT (again): Just to clarify, this is for internal application that makes heavy use of JavaScript. I'm after a way of extracting useful information from JavaScript errors that may be caught in the production system - I already have a logging mechanism, just want a way of getting a sensible string to log.