//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
v15.3.0curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash//lists all versions
nvm ls-remote
//installs the version you want (in this case version 14.0.0)
nvm install v14.0.0
//use the version that you installed as the default
nvm use v14.0.0
// Ex:
nvm install v12.13.1
curl -sL https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.0/install.sh -o install_nvm.sh