Objects and Collections

I needed to know if an object that I require on the script was properly created. In order to do so, I end testing for a known property of my object. If the property exists, I assume the object is properly created/loaded. If it didn't, I assume something is wrong, this way I can issue a friendly message rather than the script error message. Here the code I use:

'
' Determines if the Object is properly instantiated.
Public Function MyObjectExist()
    On Error Resume Next
   
    ' Request the element that we need from MyObject (if there is an error it will resume next)
    MyObject.SpecificProperty
   
    If (0 = Err.Number) Then
        MyObjectExist = True
    Else
        MyObjectExist = False
    End If
End Function

JScript version:
//
// Determines if the Object is properly instantiated.
function MyObjectExist()
{
    // Request the element that we need from MyObject, make sure it is a valid object.
    if (null != MyObject.SpecificProperty) {
        return true;
    }
    return false;
}