Answers for "ubuntu 16.04 node 12"

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

update nodejs 16 ubuntu

curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash -