How to downgrade your node version to make it work for a certain NPM package. When you run multiple projects at once, sometimes you will need a newer or older node version to run a specific project. Here is a step-by-step to change your node version.
Open terminal
To see your current node version
$ node --version
To see available node versions
$ brew search node
To unlink from current version
$ brew unlink node
Install any version e.g. 10
$ brew install node@10
To link an installed version
$ brew link node@10
To see your current node version (again)
$ node --version
Source of the above: https://apple.stackexchange.com/questions/171530/how-do-i-downgrade-node-or-install-a-specific-previous-version-using-homebrew
I mostly post this for myself as a memo, but hope it can help some other developers.