Remove a package
npm uninstall <name> [--save|--save-dev|--save-optional] npm rm (with any of the previous argument usage)
This uninstalls a package, completely removing everything npm installed on its behalf.
Example:
npm uninstall sax
In global mode (ie, with -g or --global appended to the command), it uninstalls the current package context as a global package.
npm uninstall takes 3 exclusive, optional flags which save or update the package version in your main package.json:
--save: Package will be removed from your dependencies.
--save-dev: Package will be removed from your devDependencies.
--save-optional: Package will be removed from your optionalDependencies.
Examples:
npm uninstall sax --save npm uninstall node-tap --save-dev npm uninstall dtrace-provider --save-optional
npm help prune
npm help install
npm help folders
npm help config
npm help config
npm help npmrc