yarn
Yarn is a package manager that doubles down as project manager
TLDR
Install a module globally
$ yarn global add [module_name]
Install all dependencies referenced in the package.json file (the install is optional)
$ yarn install
Install a module and save it as a dependency to the package.json file (add --dev to save as a dev dependency)
$ yarn add [module_name]@[version]
Uninstall a module and remove it from the package.json file
$ yarn remove [module_name]
Interactively create a package.json file
$ yarn init
Identify whether a module is a dependency and list other modules that depend upon it
$ yarn why [module_name]