How to get number of npm modules installed except dev dependencies

Question

Is there an NPM CLI command I can use to get the number of NPM Modules installed in my package, excluding those that are only Dev Dependencies? npm ls shows all of the packages, but it doesn't say how many or which are Dev Dependencies and which aren't. Thanks!

Answer 1

Try this

  npm ls --only=prod --depth=0 | wc -l

Now subtract by 2 whatever you get. ( -1 is for last line and another -1 is for first line where npm ls shows the directory.)

(Use git-bash if you're using Windows.)

Demo

I got 14, it means I've 12 dependency.

Answer 2

You can use:

npm ls --only=dev
npm ls --only=prod

For this purpose, you can also do

npm ls --dev

or

npm ls --prod

Pipe it out to grep to count:

npm ls --depth=0 --dev | grep "\-\-" -c