how to update node and npm in ubuntu code example

Example 1: updating node js ubuntu

curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs

Example 2: update node ubuntu

sudo npm cache clean -f
sudo npm install -g n
sudo n stable

Example 3: ubuntu update nodejs

# Using Ubuntu
curl -sL https://deb.nodesource.com/setup_13.x | sudo -E bash -
sudo apt-get install -y nodejs

# Using Debian, as root
curl -sL https://deb.nodesource.com/setup_13.x | bash -
apt-get install -y nodejs

Example 4: update nodejs ubuntu

curl -sL https://deb.nodesource.com/setup_15.x | sudo -E bash -
sudo apt-get install -y nodejs