How to Upgrade NodeJS ... e.g. as after a vulnerability/security patch

NodeUpgrade

From: http://davidwalsh.name/upgrade-nodejs

Install n helper module via npm:
npm install n

Then do the following:
sudo npm cache clean -f
sudo npm install -g n
sudo n stable

The n package represents a Node helper, and running the last command upgrades node to the latest stable version.  Instead of using "stable", you could specify a desired version:

sudo n 0.8.21

Once your install is complete, you can confirm you version with another command:

node -v