How do you know what packages that project/library depend on and what exactly are that packages doing for? You'll want to quickly survey on them. So npm-deps-list is here for.
You can install them using
npm install -g npm-deps-list
ndl, you will get a detailed list of dependencies for the package on the current directory.
If you are using iTerm2, you can also
Command + Click on a package name to jump to their homepage.
If you have any idea on it, please consider submitting an issue or a pull request!