First, we need to download the file on our computer.
wget https://deb.nodesource.com/setup_13.x
Edit with your favourite text editor and find in the file:
check_alt "Linux Mint" "tara" "Ubuntu" "bionic"
And add after:
check_alt "Linux Mint" "tina" "Ubuntu" "bionic"
Make the file executable
sudo chmod +x setup_13.x
Now run the file.
sudo ./setup_13.x
Finally you can install node.js and npm using apt.
sudo apt install nodejs
Done.