Check for outdated packages
npm outdated [<name> [<name> ...]]
This command will check the registry to see if any (or, specific) installed packages are currently outdated.
The resulting field 'wanted' shows the latest version according to the version specified in the package.json, the field 'latest' the very latest version of the package.
Show information in JSON format.
Show extended information.
Show parseable output instead of tree view.
Check packages in the global install prefix instead of in the current project.
Max depth for checking dependency tree.