Whatever the standard is for the language. Unless we're in a language without a standard (cough cough PHP cough cough). I work in a real snakecase mixed with camelcase PHP codebase at seemingly random intervals. Worst part is that this codebase started only a few years ago.
Snake is my preferred. The Python/Rust use of snake case and Pascal case for their respective purposes is my favorite.
Snake is my preferred. The Python/Rust use of snake case and Pascal case for their respective purposes is my favorite.