That's not particularly relevant to the nice pattern matching property I mentioned. If you need to manually write supplementary code to get the exhaustiveness safety then that's back into the realm of bog-standard defensive programming.

Here's what I mean. The Ruby will throw NoMatchingPatternError and the Python will silently do nothing.

    x = [10, "figs"]

    case x
    in [n, "apples"]
      :foo
    in [n, "oranges"]
      :bar
    end

    # ---

    x = [10, "figs"]

    match x:
        case [n, "apples"]:
                ...
        case [n, "oranges"]:
                ...

Neat. Will check it out.

I recently spotted a (new to me) foreach / else construct in a templating language (sorry, forget which one); else is invoked if the list is empty. Nice sugar for common outputs like "no items found".

I appreciate modest syntactic sugar.

For instance, my #1 sugar wish is for Java's foreach is to do nothing when the list reference is null. Versus tossing a NPE.

Eliminates an unnecessary null check and makes the world a little bit more null-safe.