miniblog.

I've been building an 'extract function' refactor feature. It's surprisingly nuanced. Where do you put the extracted function? Once you've done the static analysis, what order do you use for the parameters?

Playing with optional type signatures in Python, I realise that the return type is the most important to me. I'd much rather have a function with only a return type instead of a function with only parameter types. It's often quick to add too.

I'm coming round to the view that a main function shouldn't take arguments. For example, in Rust you have to call std::env::args() to get CLI arguments. This makes Hello World less verbose, and gives you more flexibility in setting up CLI argument parsers.