install the latest npm on ubuntu code example

Example 1: install npm ubuntu

sudo apt update
sudo apt install nodejs
sudo apt install npm

Example 2: npm inatall latest version ubuntu

// update latest version NPM
sudo npm install -g npm@latest

//update to next version NPM
sudo npm install -g npm@next

Example 3: install node and npm ubuntu

curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt install -y nodejs