public void ThrowOut(Passenger passenger)
{
if (passenger == null)
{
// Nameof expressions
//
// -- this
throw new ArgumentNullException(nameof(passenger));
//
// -- takes the place of this
throw new ArgumentNullException("passenger");
//
// -- nameof gets rid of the hardcoded element name, allowing easier name refactorings
}
if (this.Passengers.Contains(passenger))
{
this.Passengers.Remove(passenger);
}
else
{
throw new ArgumentException("Alas, you can't throw out who never entered. 'Tis a true pity, I say.");
}
}
//
public string GetComplimentFor(Passenger passenger) => $"You smell great {passenger}!";