Error when using the native JScript ".hasOwnProperty()" method

It depends upon what kind of object you're trying to call it on.  If you have a native JScript object, the hasOwnProperty method will work.



However, if you have a windows object or a page object or some other tested object as determined by TestComplete, those are not native JScript objects and, therefore, do not have that method associated with them.



Would you post a segment of the code where you're intending on using it?  That would be helpful in knowing better how to help you debug.