nvm install 8.10.0 is for installing proposed node version locally.
In order to use it:
nvm use 8.10.0
Note that you need to run this command as administrator.
You can always set default Node.js version:
nvm alias default 8.10.0
Answer from Derviş Kayımbaşıoğlu on Stack Overflownvm install 8.10.0 is for installing proposed node version locally.
In order to use it:
nvm use 8.10.0
Note that you need to run this command as administrator.
You can always set default Node.js version:
nvm alias default 8.10.0
Install
nvm install 8.10.0Use once per terminal
nvm use 8.10.0Set up as the default for all terminals
nvm alias default 8.10.0Set up Node.js version for your IDE

- For more information check nvm documentation
Managing npm versions with nvm - how to switch between different npm releases?
How can I specify which Node version to use when Node was installed with Homebrew?
Node Version Manager
Set node version used by neovim dynamically
Videos
You can set the system-wide Node.js version by typing
nvm alias default 11.10.0
Install the version that you would like:
nvm install 11.10.0
Set 11.10.0 (or another version) as default:
nvm alias default 6.1.0
Verify the current version by running node -v or nvm current
I used nvm for a few years, but the issue I have with it is that it's a per-user installation. When you're dealing with system accounts that have no login (e.g. www-data), you're running into problems and have to jump through hoops to get it working.
An altertive option is asdf, which is installed system-wide: https://asdf-vm.com/guide/getting-started.html. Asdf also provides many plugins for other languages than node.js. That being said, asdf is probably the least stable from all the options.
Another alternative is n: https://github.com/tj/n. This is a pretty stable (and simple, like nvm) node version manager.
Another alternative is Volta: https://docs.volta.sh/guide/getting-started. This one is modern and reliable and should automatically use the right version based on package.json.
Yet another option is fnm: https://github.com/Schniz/fnm
So here you go, I'm sure there's something there for you... Personally, I'm happy with "n". It's simple and fast, all that I need.