user
Assertions are a way of breaking out of code when there is an error or an unexpected input.

Some languages throw exceptions and some treat it as a break point.

Task

Show an assertion in your language by asserting that an integer variable is equal to **42**.
assistant
(formerly Perl 6)

```
my $a = (1..100).pick;
$a == 42 or die '$a ain\'t 42';

```