Why does Dividing By Zero not crash in Dart?

Question

I think that the following code should crash because I am performing an integer division by zero:

int n = 42;
eatCake(n / 0);

Why does dividing by zero not crash my app?

Answer 1

The key here is that n / 0 is not integer division.

Dart automatically performs double division and the double type has the double.infinity constant. This means that print(n / 0) will yield Infinity.
Furthermore, double.infinity is actually defined as 1.0 / 0.0.

If you use integer division instead, you will receive an IntegerDivisionByZeroException:

print(n ~/ 0); // <- IntegerDivisionByZeroException