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.




   ! 2=3  # Failed
Error: Assertion error
at ! 2=3  # Failed
   ^
   "hello" ! 2=3  # Failed
Error: hello
at "hello" ! 2=3  # Failed