NPM outdated command not showing full list

Question

When I do on my terminal: npm outdated -g I get a list of global packages that have updates available, and that's fine:

Package              Current  Wanted  Latest  Location
create-next-app       10.0.3  10.0.4  10.0.4  global
eslint-plugin-react   7.21.5  7.22.0  7.22.0  global
firebase-tools         9.0.1   9.1.0   9.1.0  global

After I installed all of them, I wanted to make sure that I got all the packages updated, so I hit again, the same command, but accidentally hit npm outdated -g\. This time I got a package that not listed before:

Package                 Current  Wanted  Latest  Location
eslint-plugin-flowtype    3.9.1  3.13.0   5.2.0  global

I hit again npm outdated -g and got no result, and repeated with backslash and got this package.
I checked this and didn't see anything related. Does anyone know what's the issue? Of course I can see that this eslint-plugin-flowtype package have breaking changes (3.x vs 5.x), but how is it not displayed in the original npm outdated -g command?

Thanks.

Answer 1

As shown in the docs, npm outdated defaults to a depth of 0, so unless you override that, you'll always be seeing only top-level dependencies that are outdated. You can run something like npm outdated --depth 9999 to see all.