Extraneous Package when Installed Locally
- Yes. (Re-installing with
npm installwont install phantom.js again.) (Btw.:npm install xxx --savewill automatically add xxx to the package.json) - Yes. Local package versions are preferred over global ones. (Although you need some path handling for executables.)
phantomjs should be included in your local .json package(manually editing it or using --save command see TheHippo's answer). If it is installed somewhere and you don't need it use the prune command
npm prune
will remove all non-required packages.
To install an item both locally and globally use:
sudo npm install -g phantomjs