Modified macOS uninstall script for packaged install of node.js from https://stackoverflow.com/a/9287292/23056

README.md

To run this, you can try:

curl -ksO https://gist.githubusercontent.com/chriswayg/cd923e933062f0c053a417fa6bf1094e/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh

uninstall-node.sh

#!/bin/sh
(( ${#} > 0 )) || {
  echo 'DISCLAIMER: USE THIS SCRIPT AT YOUR OWN RISK!'
  echo 'THE AUTHOR TAKES NO RESPONSIBILITY FOR THE RESULTS OF THIS SCRIPT.'
  echo "Disclaimer aside, this worked for the author, for what that's worth."
  echo 'Press Control-C to quit now.'
  read
  echo 'Re-running the script with sudo.'
  echo 'You may be prompted for a password.'
  sudo ${0} sudo
  exit $?
}
# This will need to be executed as an Admin (maybe just use sudo).
# [CHW]: added some lines to remove more files (some deletions are redundant)

for bom in org.nodejs.node.pkg.bom org.nodejs.pkg.bom; do

  receipt=/var/db/receipts/${bom}
  [ -e ${receipt} ] && {
    # Loop through all the files in the bom.
    lsbom -f -l -s -pf ${receipt} \
    | while read i; do
      # Remove each file listed in the bom.
      # Changed based on comments under original Gist.
      rm -v /usr/local/${i#./usr/local/}
    done
  }
done

npm uninstall npm -g

# Remove directories & files related to node.js.
rm -rfv /usr/local/lib/node 
rm -rfv /usr/local/lib/node_modules
rm -rfv /var/db/receipts/org.nodejs.*
rm -rfv /usr/local/include/node
rm -rfv /usr/local/share/doc/node

rm -v /usr/local/share/man/man1/node*
rm -v /usr/local/share/man/man1/npm*
rm -v /usr/local/lib/dtrace/node.d  
rm -v /usr/local/share/systemtap/tapset/node.stp
rm -v /usr/local/bin/node
rm -v /usr/local/bin/npm
rm -v /usr/local/bin/npx

rm -v $HOME/.npmrc
rm -rfv $HOME/.npm

exit 0