Well, since you mentioned ruby, I've never had - not even once! - to wipe out my gems folder in 10 years I'm coding with it. I think most ruby developers never had too.

With javascript? Well, for instance, take Expo's official release notes for each new SDK and it's right there, as the recommended practice: wipe out your `node_modules` folder and run `yarn` again every time. And good luck not having your `yarn.lock` file randomly changing versions after a while.

It's just a single silly example, but it tells how much more stable the ruby development experience is.