how to install npm in ubuntu 18.04 in terminal code example

Example 1: install node js lts 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

Example 2: install node js using nvm ubuntu

bash install_nvm.sh

Example 3: install nodejs from ubuntu 18.04

sudo bash nodesource_setup.sh