When keyboard input is given in the number sense test but a question has not been generated, the app breaks. Also, code structure for updating the question service from the test component should be refactored, and custom observables should be unsubscribed in the ngOnDestroy() method.
When keyboard input is given in the number sense test but a question has not been generated, the app breaks. Also, code structure for updating the question service from the test component should be refactored, and custom observables should be unsubscribed in the ngOnDestroy() method.