Knowledge Check: Question 6.3

dmsheiko

If a package dependency has a development dependency, in what scenario, if any, will the development dependency be installed?

A. When running npm install inside the package folder
B. Never
C. When running npm install --production inside the package folder

Why is the correct answer B. Never?

When I run npm install both prod and dev dependencies are installed.
In order to avoid dev dependencies I should run npm install --production or npm install --omit=dev.
So it seems the correct answer is A instead.

After all, what is the purpose of dev dependencies if there is no way to install them?

Regards,
Dmytro

249ymzn0nkk5-LFW211Labs06.28.2023.pdf

d.m.c

@dmsheiko "if a package DEPENDENCY has a development dependency" vs "if a package has a development dependency" - i.e. it's a second level dev dep. Second level dev deps are never installed.

dmsheiko

Got it, thanks. Did not notice that it's about second level dependency.

d.m.c

yeah it's often missed in real world development, that's why it's one of the questions