List installed packages
npm list npm ls npm la npm ll
This command will print to stdout all the versions of packages that are installed, as well as their dependencies, in a tree-structure.
It does not take positional arguments, though you may set config flags
like with any other command, such as
-g to list global packages.
It will print out extraneous, missing, and invalid packages.
When run as
la, it shows extended information by default.
Show information in JSON format.
Show extended information.
Show parseable output instead of tree view.
List packages in the global install prefix instead of in the current project.