install nodejs from ubuntu 18 04

1// Enabling NodeSource Repository
2// replace %V% with desired major version
3curl -sL https://deb.nodesource.com/setup_%V%.x | sudo bash -
4// Install using apt-get
5sudo apt-get install -y nodejs
6// check installed node version
7node --version

1sudo bash nodesource_setup.sh
2

1cd ~
2curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh
3