@jeffalyanak I understand it from the fast and loose sense of "just subtract these two things and give me something reasonable back". There can be a benefit there in duck typing from a distance in that you don't need to know the full system to touch small parts of it.
That said, yes, I use Typescript exclusively these days because I want to know the full system I'm working, I'm not just trying to bang together a quick onclick handler, but building an app, want type safety.
Software dev problems
It was not a dependency issue of that sort, it was use copy and pastes and I retype, so copy & pasted numbers in some parts of the app were getting saved as strings, so some equations worked (because implicit JS type coercion, boo) and the others didn't because the dependency just ignore strings because WHY WOULD YOU EXPECT STRINGS TO BE NUMBERS?! 😿