I Love Javascript!

I have a complete change of heart on this. Now I recommend this:

https://www.digitalocean.com/community/tutorials/how-to-install-node-js-with-nvm-node-version-manager-on-a-vps

Which is actually explaining the use of this:

https://github.com/creationix/nvm

[updated 8/1/15 because of Digital Ocean link rot]