NPM uninstall doesn't uninstall dependencies

Question

I have noticed in some experiments that "$ npm uninstall --save --save-dev X", does not uninstall dependencies that only X depends on. Is there a way to uninstall all the modules that only X depends on when you run the above command?

Answer 1

There is a command to remove unnecessary packages:

npm prune

https://docs.npmjs.com/cli/prune