How to find reverse dependencies on npm package?

Question

I\'d like to find out which packages depend on express among the installed sails/kraken/loopback/hapi/koa etc. Are there npm sub-comma

Answer 1

Adding package name after npm ls will show you tree only with the specified package.

npm ls express

Answer 2

I specifically wanted to find what package used a dependency that was breaking an initial install. This may help somebody out trying todo the same:

find ./node_modules/ -name package.json | xargs grep <the_package_name>