Use with nullish coalescing operator

[Eli-Black-Work]

I have an additional example of where I think this feature would be useful: In conjunction with the nullish coalescing operator.

For example:

const car = cars[carType] ?? throw "Car type mayn't be null";

Would this be worth adding to the list of examples? :)

[tintin10q]

This is the main reason I would like to see this added great that @Bosch-Eli-Black already suggested this.

I would like to add this example when checking function arguments, which is even shorter.

function log_animal(animal) {
   animal ??= throw "Animal can not be undefined or null";
   animal.name ??= throw "Animal name can not be undefined or null";
   console.log(animal); 
}

[rbuckton]

I would like to add this example when checking function arguments, which is even shorter.

function log_animal(animal) {
   animal ??= throw "Animal can not be undefined or null";
   animal.name ??= throw "Animal name can not be undefined or null";
   console.log(animal); 
}

There's no need to use compound assignment here, animal ?? throw ... would work just as well.

I can add these to the explainer once #17 has merged.