install nodejs from ubuntu 18.04

// Enabling NodeSource Repository
// replace %V% with desired major version
curl -sL https://deb.nodesource.com/setup_%V%.x | sudo bash -
// Install using apt-get
sudo apt-get install -y nodejs
// check installed node version
node --version

sudo bash nodesource_setup.sh

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

sudo apt install curl
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get update
sudo apt-get install nodejs
nodejs -v
npm -v