NVM (Node Version Manager) is a tool which helps you easily manage your Node versions. Without NVM managing node versions locally is a real pain, install this once and breathe a sigh of relief.
Your Node install looking a little outdated? easily install the latest stable version of node.
nvm install node
Check what versions of Node you have installed, if you have a new one installed you can switch it there and then
nvm list
If you need to use a specific version of Node for a project declare it in the command.
nvm install 6.14.4 # or 10.10.0, 8.9.1, etc
Are new terminal sessions using different versions of Node? Set your default version which will be used across everything.
nvm alias default node