node 8.10 is installing in my ubuntu code example
Example 1: install nodejs from ubuntu 18.04
sudo bash nodesource_setup.shExample 2: install nodejs from ubuntu 18.04
cd ~
curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.shsudo bash nodesource_setup.shcd ~
curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh