install latest node and npm ubuntu 18.04 code example

Example 1: install node js using nvm ubuntu

bash install_nvm.sh

Example 2: install nodejs from ubuntu 18.04

sudo bash nodesource_setup.sh

Example 3: install nodejs from ubuntu 18.04

cd ~
curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh