NodeJS — Easy way to upgrade



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

It just worked for me on the MBPro (OS X).