[nnnnico]

I agree with this. I prefer explicit optional/null return types, otherwise the possibility of an error still exists but is now hidden to the caller. Langs with syntax for concise optional chaining and such fix this problem imo

[madeofpalk]

Note that Typescript - the language of the examples - does have proper null through it's type system. A function that returns `T | null` will require callers check for null before using T.