gBASIC. `help` for prompt commands, `quit` to leave.
> animals = ["a dog", "a pigeon", "a goldfish", "a parrot"]
> count(animals)
4
> animals[0]
a dog
> animals[3]
a parrot
> animals[count(animals) - 1]
a parrot
> animals[4]
runtime error at <prompt>:1:8: array index out of range
> count(animals)
4
> type(animals)
array
> quit
Your program was not saved; `recover` will bring it back next time.
