- a task (a string) - a description of the thing to do
- who (a string) - the name of a person to do it
- done (a boolean) - is the task done or not?
- getDone (a method) - get the value of done, use "this" in the body of the method.
- setDone (a method) - set the value of done, use "this" in the body of the method.