install npm in ubuntu 18.04 code example
Example 1: install nodejs from ubuntu 18.04
sudo bash nodesource_setup.sh
Example 2: install node package manager ubuntu 18.04
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
Example 3: install nodejs from ubuntu 18.04
cd ~
curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh