how to install node 8 in ubuntu code example

Example 1: install nodejs latest version ubuntu

//STEP 1:install using curl (PPA)
sudo apt update && sudo apt install curl -y
//STEP 2:install latest version (replace 14.x with requird one(i.e 15.x))
curl -sL https://deb.nodesource.com/setup_15.x | sudo -E bash -
sudo apt install nodejs
nodejs -v
v15.3.0

Example 2: how to install npm and node js ubuntu

sudo apt-get install curl
curl -sL https://deb.nodesource.com/setup_15.x | sudo -E bash -
sudo apt-get install nodejs
# Check node version
node -v 
# v15.14.0
# Also, check the npm version
npm -v 
# 7.7.6