When attempting to list only the production dependencies from package.json according to the npm docs, I tried:
npm list -depth 0 -prod
or
npm list -depth 0 -only prod
However, npm continues to list both dependencies and devDependencies. Can anyone suggest a way to achieve this?
After discovering that the command was not compatible with 3.7.3, I decided to upgrade my npm version to 3.8.7. The new command that worked for me is:
npm list -prod -depth 0
npm list --depth 0 --prod true will show the dependencies, while npm list --depth 0 --dev true will display the devDependencies. I have found these commands to be effective in my projects. It seems like you might have forgotten to include the true parameter after the --prod or --dev flag.
Upon reaching this point, I found myself perplexed by the recommendations from Google. As of now (2023), npm is only capable of listing production dependencies using npm --omit=dev (npm >=8). Unfortunately, there isn't an option to list only the dev dependencies (no --omit=production/prod), but you can achieve this in bash with a workaround like:
npm ls --depth=0 | awk -F' ' '{print $2}' | grep -vxF -f <(npm ls --omit=dev --depth=0 | awk -F' ' '{print $2}')
The purpose of the awk part is to extract just the package names without the additional formatting provided by npm ls.
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