Easly to remove all node_modules on current directory recursively.
wget https://github.com/dankerizer/bersihkan.sh/raw/master/bersihkan.sh --output-document=bersihkan.sh
mv bersihkan.sh /usr/local/sbin
Don't run this script on global, because this script could remove all file that named with "node_modules"
So, go to your development folder. for example i use MAMP, so i open htdocs folder
cd /Applications/MAMP/htdocs
and than...
bersihkan.sh
And then, if you will edit your project, you can install all node modules again
npm install