NPM List

npm list # list installed packages (tree)
npm ls # short form
npm list --depth=0 # list top-level packages only

npm list -g # list global packages
npm list -g --depth=0 # list global packages (top-level)

npm list package # check if package is installed
npm list react # example

npm view package # view package info
npm show package # alias
npm info package # alias
npm view package version # view specific field