I order const and let according to the distinctive use case. When something does change, let and for things who persist all the same, const.
I think it is a good idea, to check (optionally?) if each let interacts in that way, or if let could also be changed into a const. I think that way, it is easy to see what does what. Someone new to the code can rely on the keyword, to know if it is potentially changing at runtime. If that is a stupid idea, just tell me, I am new to programming.
