There are cases where you might want to choose: crash and burn, or handle at runtime. Where this makes sense, Inko does actually let you do that. For example, array indexing is done using one of two methods:

- Array.get/Array.get_mut for when you want to panic on an out-of-bounds index

- Array.opt/Array.opt_mut for when you want an Option type, with it being a None for an out of bounds index

So for example:

    [10, 20, 30].get(0)  => 10
    [10, 20, 30].get(42) => panic
    [10, 20, 30].opt(0)  => Option.Some(10)
    [10, 20, 30].opt(42) => Option.None

This pattern is applied across the standard library where this makes sense, such that the developer can pick which option works best for their needs.

There are a few places where we check for some input at runtime and panic if this is invalid, but this is limited to cases where there's simply no sensible alternative (e.g. providing a key with an invalid size to a ChaCha20 cipher).