1. Does a component re-render when its props change?

Yes

2. Does a component re-render when a parent's props change?

Yes

3. How can we ensure a component re-renders only when its props change?

Wrap the component in the memo function

4. What function prop would we use to add a keydown event listener?

onKeyDown

5. A component has the following props interface:

interface Props {
  name: string;
  active: boolean;
}

How can we destructure the props parameter and default active to true?

We can do the following:  

export const myComponent: FC<Props> = ({ name, active = true }) => ( ... )

6. Let's say we have a state called dateOfBirth. How can we type this to be Date?

We can do the following:

const [dateOfBirth, setDateOfBirth] = useState<Date>(undefined);
  

7. How could we use the useEffect hook to call a synchronous function called getItems when a piece of state called category changes, passing in category to getItems?

We can do the following:

useEffect(() => {
  getItems(category);
}, [category]);