import { Appointment } from “../src/Appointment”;
Although Appointment was defined as an export, it wasn’t defined as a default export. That means we have to import it using the curly brace form of import (import { … }). We tend to avoid using default exports as doing so keeps the name of our component and its usage in sync. If we change the name of a component, then every place where it’s imported will break until we change those, too. This isn’t the case with default exports. Once your names are out of sync, it’s harder to track where components are used—you can’t simply use text search to find them.